2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
29 * Texture image-related functions.
34 #include "bufferobj.h"
38 #include "framebuffer.h"
43 #include "multisample.h"
44 #include "pixelstore.h"
46 #include "texcompress.h"
47 #include "texcompress_cpal.h"
51 #include "texstorage.h"
52 #include "textureview.h"
54 #include "glformats.h"
60 * State changes which we care about for glCopyTex[Sub]Image() calls.
61 * In particular, we care about pixel transfer state and buffer state
62 * (such as glReadBuffer to make sure we read from the right renderbuffer).
64 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
67 * Returns a corresponding internal floating point format for a given base
68 * format as specifed by OES_texture_float. In case of GL_FLOAT, the internal
69 * format needs to be a 32 bit component and in case of GL_HALF_FLOAT_OES it
70 * needs to be a 16 bit component.
72 * For example, given base format GL_RGBA, type GL_Float return GL_RGBA32F_ARB.
75 adjust_for_oes_float_texture(GLenum format
, GLenum type
)
85 return GL_ALPHA32F_ARB
;
87 return GL_LUMINANCE32F_ARB
;
88 case GL_LUMINANCE_ALPHA
:
89 return GL_LUMINANCE_ALPHA32F_ARB
;
95 case GL_HALF_FLOAT_OES
:
102 return GL_ALPHA16F_ARB
;
104 return GL_LUMINANCE16F_ARB
;
105 case GL_LUMINANCE_ALPHA
:
106 return GL_LUMINANCE_ALPHA16F_ARB
;
120 * For cube map faces, return a face index in [0,5].
121 * For other targets return 0;
124 _mesa_tex_target_to_face(GLenum target
)
126 if (_mesa_is_cube_face(target
))
127 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
135 * Install gl_texture_image in a gl_texture_object according to the target
136 * and level parameters.
138 * \param tObj texture object.
139 * \param target texture target.
140 * \param level image level.
141 * \param texImage texture image.
144 set_tex_image(struct gl_texture_object
*tObj
,
145 GLenum target
, GLint level
,
146 struct gl_texture_image
*texImage
)
148 const GLuint face
= _mesa_tex_target_to_face(target
);
152 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
155 tObj
->Image
[face
][level
] = texImage
;
157 /* Set the 'back' pointer */
158 texImage
->TexObject
= tObj
;
159 texImage
->Level
= level
;
160 texImage
->Face
= face
;
165 * Allocate a texture image structure.
167 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
170 * \return a pointer to gl_texture_image struct with all fields initialized to
173 struct gl_texture_image
*
174 _mesa_new_texture_image( struct gl_context
*ctx
)
177 return CALLOC_STRUCT(gl_texture_image
);
182 * Free a gl_texture_image and associated data.
183 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
185 * \param texImage texture image.
187 * Free the texture image structure and the associated image data.
190 _mesa_delete_texture_image(struct gl_context
*ctx
,
191 struct gl_texture_image
*texImage
)
193 /* Free texImage->Data and/or any other driver-specific texture
196 assert(ctx
->Driver
.FreeTextureImageBuffer
);
197 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
203 * Test if a target is a proxy target.
205 * \param target texture target.
207 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
210 _mesa_is_proxy_texture(GLenum target
)
213 static const GLenum targets
[] = {
217 GL_PROXY_TEXTURE_CUBE_MAP
,
218 GL_PROXY_TEXTURE_RECTANGLE
,
219 GL_PROXY_TEXTURE_1D_ARRAY
,
220 GL_PROXY_TEXTURE_2D_ARRAY
,
221 GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
,
222 GL_PROXY_TEXTURE_2D_MULTISAMPLE
,
223 GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
226 * NUM_TEXTURE_TARGETS should match number of terms above, except there's no
227 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
229 STATIC_ASSERT(NUM_TEXTURE_TARGETS
== ARRAY_SIZE(targets
) + 2);
231 for (i
= 0; i
< ARRAY_SIZE(targets
); ++i
)
232 if (target
== targets
[i
])
239 * Test if a target is an array target.
241 * \param target texture target.
243 * \return true if the target is an array target, false otherwise.
246 _mesa_is_array_texture(GLenum target
)
249 case GL_TEXTURE_1D_ARRAY
:
250 case GL_TEXTURE_2D_ARRAY
:
251 case GL_TEXTURE_CUBE_MAP_ARRAY
:
252 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
261 * Return the proxy target which corresponds to the given texture target
264 proxy_target(GLenum target
)
268 case GL_PROXY_TEXTURE_1D
:
269 return GL_PROXY_TEXTURE_1D
;
271 case GL_PROXY_TEXTURE_2D
:
272 return GL_PROXY_TEXTURE_2D
;
274 case GL_PROXY_TEXTURE_3D
:
275 return GL_PROXY_TEXTURE_3D
;
276 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
277 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
278 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
279 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
280 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
281 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
282 case GL_TEXTURE_CUBE_MAP
:
283 case GL_PROXY_TEXTURE_CUBE_MAP
:
284 return GL_PROXY_TEXTURE_CUBE_MAP
;
285 case GL_TEXTURE_RECTANGLE_NV
:
286 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
287 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
288 case GL_TEXTURE_1D_ARRAY_EXT
:
289 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
290 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
291 case GL_TEXTURE_2D_ARRAY_EXT
:
292 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
293 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
294 case GL_TEXTURE_CUBE_MAP_ARRAY
:
295 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
296 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
;
297 case GL_TEXTURE_2D_MULTISAMPLE
:
298 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
299 return GL_PROXY_TEXTURE_2D_MULTISAMPLE
;
300 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
301 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
302 return GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
;
304 _mesa_problem(NULL
, "unexpected target in proxy_target()");
313 * Get a texture image pointer from a texture object, given a texture
314 * target and mipmap level. The target and level parameters should
315 * have already been error-checked.
317 * \param texObj texture unit.
318 * \param target texture target.
319 * \param level image level.
321 * \return pointer to the texture image structure, or NULL on failure.
323 struct gl_texture_image
*
324 _mesa_select_tex_image(const struct gl_texture_object
*texObj
,
325 GLenum target
, GLint level
)
327 const GLuint face
= _mesa_tex_target_to_face(target
);
331 assert(level
< MAX_TEXTURE_LEVELS
);
333 return texObj
->Image
[face
][level
];
338 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
339 * it and install it. Only return NULL if passed a bad parameter or run
342 struct gl_texture_image
*
343 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
344 GLenum target
, GLint level
)
346 struct gl_texture_image
*texImage
;
351 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
353 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
355 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
359 set_tex_image(texObj
, target
, level
, texImage
);
367 * Return pointer to the specified proxy texture image.
368 * Note that proxy textures are per-context, not per-texture unit.
369 * \return pointer to texture image or NULL if invalid target, invalid
370 * level, or out of memory.
372 static struct gl_texture_image
*
373 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
375 struct gl_texture_image
*texImage
;
382 case GL_PROXY_TEXTURE_1D
:
383 if (level
>= ctx
->Const
.MaxTextureLevels
)
385 texIndex
= TEXTURE_1D_INDEX
;
387 case GL_PROXY_TEXTURE_2D
:
388 if (level
>= ctx
->Const
.MaxTextureLevels
)
390 texIndex
= TEXTURE_2D_INDEX
;
392 case GL_PROXY_TEXTURE_3D
:
393 if (level
>= ctx
->Const
.Max3DTextureLevels
)
395 texIndex
= TEXTURE_3D_INDEX
;
397 case GL_PROXY_TEXTURE_CUBE_MAP
:
398 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
400 texIndex
= TEXTURE_CUBE_INDEX
;
402 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
405 texIndex
= TEXTURE_RECT_INDEX
;
407 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
408 if (level
>= ctx
->Const
.MaxTextureLevels
)
410 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
412 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
413 if (level
>= ctx
->Const
.MaxTextureLevels
)
415 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
417 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
418 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
420 texIndex
= TEXTURE_CUBE_ARRAY_INDEX
;
422 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
425 texIndex
= TEXTURE_2D_MULTISAMPLE_INDEX
;
427 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
430 texIndex
= TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
;
436 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
438 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
440 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
443 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
444 /* Set the 'back' pointer */
445 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
452 * Get the maximum number of allowed mipmap levels.
454 * \param ctx GL context.
455 * \param target texture target.
457 * \return the maximum number of allowed mipmap levels for the given
458 * texture target, or zero if passed a bad target.
463 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
467 case GL_PROXY_TEXTURE_1D
:
469 case GL_PROXY_TEXTURE_2D
:
470 return ctx
->Const
.MaxTextureLevels
;
472 case GL_PROXY_TEXTURE_3D
:
473 return ctx
->Const
.Max3DTextureLevels
;
474 case GL_TEXTURE_CUBE_MAP
:
475 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
476 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
477 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
478 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
479 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
480 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
481 case GL_PROXY_TEXTURE_CUBE_MAP
:
482 return ctx
->Extensions
.ARB_texture_cube_map
483 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
484 case GL_TEXTURE_RECTANGLE_NV
:
485 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
486 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
487 case GL_TEXTURE_1D_ARRAY_EXT
:
488 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
489 case GL_TEXTURE_2D_ARRAY_EXT
:
490 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
491 return ctx
->Extensions
.EXT_texture_array
492 ? ctx
->Const
.MaxTextureLevels
: 0;
493 case GL_TEXTURE_CUBE_MAP_ARRAY
:
494 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
495 return ctx
->Extensions
.ARB_texture_cube_map_array
496 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
497 case GL_TEXTURE_BUFFER
:
498 return ctx
->API
== API_OPENGL_CORE
&&
499 ctx
->Extensions
.ARB_texture_buffer_object
? 1 : 0;
500 case GL_TEXTURE_2D_MULTISAMPLE
:
501 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
502 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
503 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
504 return (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles31(ctx
))
505 && ctx
->Extensions
.ARB_texture_multisample
507 case GL_TEXTURE_EXTERNAL_OES
:
510 return 0; /* bad target */
516 * Return number of dimensions per mipmap level for the given texture target.
519 _mesa_get_texture_dimensions(GLenum target
)
523 case GL_PROXY_TEXTURE_1D
:
526 case GL_TEXTURE_RECTANGLE
:
527 case GL_TEXTURE_CUBE_MAP
:
528 case GL_PROXY_TEXTURE_2D
:
529 case GL_PROXY_TEXTURE_RECTANGLE
:
530 case GL_PROXY_TEXTURE_CUBE_MAP
:
531 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
532 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
533 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
534 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
535 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
536 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
537 case GL_TEXTURE_1D_ARRAY
:
538 case GL_PROXY_TEXTURE_1D_ARRAY
:
539 case GL_TEXTURE_EXTERNAL_OES
:
540 case GL_TEXTURE_2D_MULTISAMPLE
:
541 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
544 case GL_PROXY_TEXTURE_3D
:
545 case GL_TEXTURE_2D_ARRAY
:
546 case GL_PROXY_TEXTURE_2D_ARRAY
:
547 case GL_TEXTURE_CUBE_MAP_ARRAY
:
548 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
549 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
550 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
552 case GL_TEXTURE_BUFFER
:
555 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
563 * Check if a texture target can have more than one layer.
566 _mesa_tex_target_is_layered(GLenum target
)
570 case GL_PROXY_TEXTURE_1D
:
572 case GL_PROXY_TEXTURE_2D
:
573 case GL_TEXTURE_RECTANGLE
:
574 case GL_PROXY_TEXTURE_RECTANGLE
:
575 case GL_TEXTURE_2D_MULTISAMPLE
:
576 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
577 case GL_TEXTURE_BUFFER
:
578 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
579 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
580 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
581 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
582 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
583 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
584 case GL_TEXTURE_EXTERNAL_OES
:
588 case GL_PROXY_TEXTURE_3D
:
589 case GL_TEXTURE_CUBE_MAP
:
590 case GL_PROXY_TEXTURE_CUBE_MAP
:
591 case GL_TEXTURE_1D_ARRAY
:
592 case GL_PROXY_TEXTURE_1D_ARRAY
:
593 case GL_TEXTURE_2D_ARRAY
:
594 case GL_PROXY_TEXTURE_2D_ARRAY
:
595 case GL_TEXTURE_CUBE_MAP_ARRAY
:
596 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
597 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
598 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
602 assert(!"Invalid texture target.");
609 * Return the number of layers present in the given level of an array,
610 * cubemap or 3D texture. If the texture is not layered return zero.
613 _mesa_get_texture_layers(const struct gl_texture_object
*texObj
, GLint level
)
615 assert(level
>= 0 && level
< MAX_TEXTURE_LEVELS
);
617 switch (texObj
->Target
) {
620 case GL_TEXTURE_RECTANGLE
:
621 case GL_TEXTURE_2D_MULTISAMPLE
:
622 case GL_TEXTURE_BUFFER
:
623 case GL_TEXTURE_EXTERNAL_OES
:
626 case GL_TEXTURE_CUBE_MAP
:
629 case GL_TEXTURE_1D_ARRAY
: {
630 struct gl_texture_image
*img
= texObj
->Image
[0][level
];
631 return img
? img
->Height
: 0;
635 case GL_TEXTURE_2D_ARRAY
:
636 case GL_TEXTURE_CUBE_MAP_ARRAY
:
637 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
: {
638 struct gl_texture_image
*img
= texObj
->Image
[0][level
];
639 return img
? img
->Depth
: 0;
643 assert(!"Invalid texture target.");
650 * Return the maximum number of mipmap levels for the given target
651 * and the dimensions.
652 * The dimensions are expected not to include the border.
655 _mesa_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
662 case GL_TEXTURE_1D_ARRAY
:
663 case GL_PROXY_TEXTURE_1D
:
664 case GL_PROXY_TEXTURE_1D_ARRAY
:
667 case GL_TEXTURE_CUBE_MAP
:
668 case GL_TEXTURE_CUBE_MAP_ARRAY
:
669 case GL_PROXY_TEXTURE_CUBE_MAP
:
670 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
674 case GL_TEXTURE_2D_ARRAY
:
675 case GL_PROXY_TEXTURE_2D
:
676 case GL_PROXY_TEXTURE_2D_ARRAY
:
677 size
= MAX2(width
, height
);
680 case GL_PROXY_TEXTURE_3D
:
681 size
= MAX3(width
, height
, depth
);
683 case GL_TEXTURE_RECTANGLE
:
684 case GL_TEXTURE_EXTERNAL_OES
:
685 case GL_TEXTURE_2D_MULTISAMPLE
:
686 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
687 case GL_PROXY_TEXTURE_RECTANGLE
:
688 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
689 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
696 return _mesa_logbase2(size
) + 1;
700 #if 000 /* not used anymore */
702 * glTexImage[123]D can accept a NULL image pointer. In this case we
703 * create a texture image with unspecified image contents per the OpenGL
707 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
709 const GLint components
= _mesa_components_in_format(format
);
710 const GLint numPixels
= width
* height
* depth
;
711 GLubyte
*data
= (GLubyte
*) malloc(numPixels
* components
* sizeof(GLubyte
));
715 * Let's see if anyone finds this. If glTexImage2D() is called with
716 * a NULL image pointer then load the texture image with something
717 * interesting instead of leaving it indeterminate.
720 static const char message
[8][32] = {
724 " X X XXXX XXX XXXXX ",
727 " X X XXXXX XXX X X ",
731 GLubyte
*imgPtr
= data
;
733 for (h
= 0; h
< depth
; h
++) {
734 for (i
= 0; i
< height
; i
++) {
735 GLint srcRow
= 7 - (i
% 8);
736 for (j
= 0; j
< width
; j
++) {
737 GLint srcCol
= j
% 32;
738 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
739 for (k
= 0; k
< components
; k
++) {
755 * Set the size and format-related fields of a gl_texture_image struct
756 * to zero. This is used when a proxy texture test fails.
759 clear_teximage_fields(struct gl_texture_image
*img
)
762 img
->_BaseFormat
= 0;
763 img
->InternalFormat
= 0;
774 img
->TexFormat
= MESA_FORMAT_NONE
;
776 img
->FixedSampleLocations
= GL_TRUE
;
781 * Initialize basic fields of the gl_texture_image struct.
783 * \param ctx GL context.
784 * \param img texture image structure to be initialized.
785 * \param width image width.
786 * \param height image height.
787 * \param depth image depth.
788 * \param border image border.
789 * \param internalFormat internal format.
790 * \param format the actual hardware format (one of MESA_FORMAT_*)
791 * \param numSamples number of samples per texel, or zero for non-MS.
792 * \param fixedSampleLocations are sample locations fixed?
794 * Fills in the fields of \p img with the given information.
795 * Note: width, height and depth include the border.
798 init_teximage_fields_ms(struct gl_context
*ctx
,
799 struct gl_texture_image
*img
,
800 GLsizei width
, GLsizei height
, GLsizei depth
,
801 GLint border
, GLenum internalFormat
,
803 GLuint numSamples
, GLboolean fixedSampleLocations
)
811 target
= img
->TexObject
->Target
;
812 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
813 assert(img
->_BaseFormat
!= -1);
814 img
->InternalFormat
= internalFormat
;
815 img
->Border
= border
;
817 img
->Height
= height
;
820 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
821 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
824 img
->FixedSampleLocations
= GL_TRUE
;
828 case GL_TEXTURE_BUFFER
:
829 case GL_PROXY_TEXTURE_1D
:
841 case GL_TEXTURE_1D_ARRAY
:
842 case GL_PROXY_TEXTURE_1D_ARRAY
:
843 img
->Height2
= height
; /* no border */
844 img
->HeightLog2
= 0; /* not used */
852 case GL_TEXTURE_RECTANGLE
:
853 case GL_TEXTURE_CUBE_MAP
:
854 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
855 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
856 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
857 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
858 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
859 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
860 case GL_TEXTURE_EXTERNAL_OES
:
861 case GL_PROXY_TEXTURE_2D
:
862 case GL_PROXY_TEXTURE_RECTANGLE
:
863 case GL_PROXY_TEXTURE_CUBE_MAP
:
864 case GL_TEXTURE_2D_MULTISAMPLE
:
865 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
866 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
867 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
874 case GL_TEXTURE_2D_ARRAY
:
875 case GL_PROXY_TEXTURE_2D_ARRAY
:
876 case GL_TEXTURE_CUBE_MAP_ARRAY
:
877 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
878 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
879 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
880 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
881 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
882 img
->Depth2
= depth
; /* no border */
883 img
->DepthLog2
= 0; /* not used */
886 case GL_PROXY_TEXTURE_3D
:
887 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
888 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
889 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
890 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
893 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
898 _mesa_get_tex_max_num_levels(target
,
899 img
->Width2
, img
->Height2
, img
->Depth2
);
900 img
->TexFormat
= format
;
901 img
->NumSamples
= numSamples
;
902 img
->FixedSampleLocations
= fixedSampleLocations
;
907 _mesa_init_teximage_fields(struct gl_context
*ctx
,
908 struct gl_texture_image
*img
,
909 GLsizei width
, GLsizei height
, GLsizei depth
,
910 GLint border
, GLenum internalFormat
,
913 init_teximage_fields_ms(ctx
, img
, width
, height
, depth
, border
,
914 internalFormat
, format
, 0, GL_TRUE
);
919 * Free and clear fields of the gl_texture_image struct.
921 * \param ctx GL context.
922 * \param texImage texture image structure to be cleared.
924 * After the call, \p texImage will have no data associated with it. Its
925 * fields are cleared so that its parent object will test incomplete.
928 _mesa_clear_texture_image(struct gl_context
*ctx
,
929 struct gl_texture_image
*texImage
)
931 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
932 clear_teximage_fields(texImage
);
937 * Check the width, height, depth and border of a texture image are legal.
938 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
940 * The target and level parameters will have already been validated.
941 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
944 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
945 GLint level
, GLint width
, GLint height
,
946 GLint depth
, GLint border
)
952 case GL_PROXY_TEXTURE_1D
:
953 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
954 maxSize
>>= level
; /* level size */
955 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
957 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
958 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
964 case GL_PROXY_TEXTURE_2D
:
965 case GL_TEXTURE_2D_MULTISAMPLE
:
966 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
967 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
969 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
971 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
973 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
974 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
976 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
982 case GL_PROXY_TEXTURE_3D
:
983 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
985 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
987 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
989 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
991 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
992 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
994 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
996 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1001 case GL_TEXTURE_RECTANGLE_NV
:
1002 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1005 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1006 if (width
< 0 || width
> maxSize
)
1008 if (height
< 0 || height
> maxSize
)
1012 case GL_TEXTURE_CUBE_MAP
:
1013 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1014 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1015 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1016 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1017 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1018 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1019 case GL_PROXY_TEXTURE_CUBE_MAP
:
1020 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1022 if (width
!= height
)
1024 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1026 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1028 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1029 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1031 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1036 case GL_TEXTURE_1D_ARRAY_EXT
:
1037 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1038 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1040 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1042 if (height
< 0 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1044 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1045 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1050 case GL_TEXTURE_2D_ARRAY_EXT
:
1051 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1052 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1053 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1054 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1056 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1058 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1060 if (depth
< 0 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1062 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1063 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1065 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1070 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1071 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1072 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1073 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1075 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1077 if (depth
< 0 || depth
> ctx
->Const
.MaxArrayTextureLayers
|| depth
% 6)
1079 if (width
!= height
)
1081 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1083 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1084 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1086 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1091 _mesa_problem(ctx
, "Invalid target in _mesa_legal_texture_dimensions()");
1098 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1099 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1100 * \param destImage the destination texture image.
1101 * \return GL_TRUE if error found, GL_FALSE otherwise.
1104 error_check_subtexture_dimensions(struct gl_context
*ctx
, GLuint dims
,
1105 const struct gl_texture_image
*destImage
,
1106 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1107 GLsizei subWidth
, GLsizei subHeight
,
1108 GLsizei subDepth
, const char *func
)
1110 const GLenum target
= destImage
->TexObject
->Target
;
1115 _mesa_error(ctx
, GL_INVALID_VALUE
,
1116 "%s(width=%d)", func
, subWidth
);
1120 if (dims
> 1 && subHeight
< 0) {
1121 _mesa_error(ctx
, GL_INVALID_VALUE
,
1122 "%s(height=%d)", func
, subHeight
);
1126 if (dims
> 2 && subDepth
< 0) {
1127 _mesa_error(ctx
, GL_INVALID_VALUE
,
1128 "%s(depth=%d)", func
, subDepth
);
1132 /* check xoffset and width */
1133 if (xoffset
< - (GLint
) destImage
->Border
) {
1134 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(xoffset)", func
);
1138 if (xoffset
+ subWidth
> (GLint
) destImage
->Width
) {
1139 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(xoffset+width)", func
);
1143 /* check yoffset and height */
1145 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destImage
->Border
;
1146 if (yoffset
< -yBorder
) {
1147 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(yoffset)", func
);
1150 if (yoffset
+ subHeight
> (GLint
) destImage
->Height
) {
1151 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(yoffset+height)", func
);
1156 /* check zoffset and depth */
1159 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
||
1160 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ?
1161 0 : destImage
->Border
;
1163 if (zoffset
< -zBorder
) {
1164 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(zoffset)", func
);
1168 depth
= (GLint
) destImage
->Depth
;
1169 if (target
== GL_TEXTURE_CUBE_MAP
)
1171 if (zoffset
+ subDepth
> depth
) {
1172 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(zoffset+depth)", func
);
1178 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1179 * compressed texture images can be updated. But, that restriction may be
1180 * relaxed for particular compressed formats. At this time, all the
1181 * compressed formats supported by Mesa allow sub-textures to be updated
1182 * along compressed block boundaries.
1184 _mesa_get_format_block_size(destImage
->TexFormat
, &bw
, &bh
);
1186 if (bw
!= 1 || bh
!= 1) {
1187 /* offset must be multiple of block size */
1188 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1189 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1190 "%s(xoffset = %d, yoffset = %d)",
1191 func
, xoffset
, yoffset
);
1195 /* The size must be a multiple of bw x bh, or we must be using a
1196 * offset+size that exactly hits the edge of the image. This
1197 * is important for small mipmap levels (1x1, 2x1, etc) and for
1200 if ((subWidth
% bw
!= 0) &&
1201 (xoffset
+ subWidth
!= (GLint
) destImage
->Width
)) {
1202 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1203 "%s(width = %d)", func
, subWidth
);
1207 if ((subHeight
% bh
!= 0) &&
1208 (yoffset
+ subHeight
!= (GLint
) destImage
->Height
)) {
1209 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1210 "%s(height = %d)", func
, subHeight
);
1222 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1223 * specific texture image size checks.
1225 * A hardware driver might override this function if, for example, the
1226 * max 3D texture size is 512x512x64 (i.e. not a cube).
1228 * Note that width, height, depth == 0 is not an error. However, a
1229 * texture with zero width/height/depth will be considered "incomplete"
1230 * and texturing will effectively be disabled.
1232 * \param target any texture target/type
1233 * \param level as passed to glTexImage
1234 * \param format the MESA_FORMAT_x for the tex image
1235 * \param width as passed to glTexImage
1236 * \param height as passed to glTexImage
1237 * \param depth as passed to glTexImage
1238 * \param border as passed to glTexImage
1239 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1242 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1244 GLint width
, GLint height
, GLint depth
, GLint border
)
1246 /* We just check if the image size is less than MaxTextureMbytes.
1247 * Some drivers may do more specific checks.
1249 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1250 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1251 mbytes
*= _mesa_num_tex_faces(target
);
1252 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1257 * Return true if the format is only valid for glCompressedTexImage.
1260 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1263 case GL_ETC1_RGB8_OES
:
1264 case GL_PALETTE4_RGB8_OES
:
1265 case GL_PALETTE4_RGBA8_OES
:
1266 case GL_PALETTE4_R5_G6_B5_OES
:
1267 case GL_PALETTE4_RGBA4_OES
:
1268 case GL_PALETTE4_RGB5_A1_OES
:
1269 case GL_PALETTE8_RGB8_OES
:
1270 case GL_PALETTE8_RGBA8_OES
:
1271 case GL_PALETTE8_R5_G6_B5_OES
:
1272 case GL_PALETTE8_RGBA4_OES
:
1273 case GL_PALETTE8_RGB5_A1_OES
:
1281 * Return true if the format doesn't support online compression.
1284 _mesa_format_no_online_compression(const struct gl_context
*ctx
, GLenum format
)
1286 return _mesa_is_astc_format(format
) ||
1287 compressedteximage_only_format(ctx
, format
);
1290 /* Writes to an GL error pointer if non-null and returns whether or not the
1291 * error is GL_NO_ERROR */
1293 write_error(GLenum
*err_ptr
, GLenum error
)
1298 return error
== GL_NO_ERROR
;
1302 * Helper function to determine whether a target and specific compression
1303 * format are supported. The error parameter returns GL_NO_ERROR if the
1304 * target can be compressed. Otherwise it returns either GL_INVALID_OPERATION
1305 * or GL_INVALID_ENUM, whichever is more appropriate.
1308 _mesa_target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1309 GLenum intFormat
, GLenum
*error
)
1311 GLboolean target_can_be_compresed
= GL_FALSE
;
1312 mesa_format format
= _mesa_glenum_to_compressed_format(intFormat
);
1313 enum mesa_format_layout layout
= _mesa_get_format_layout(format
);
1317 case GL_PROXY_TEXTURE_2D
:
1318 target_can_be_compresed
= GL_TRUE
; /* true for any compressed format so far */
1320 case GL_PROXY_TEXTURE_CUBE_MAP
:
1321 case GL_TEXTURE_CUBE_MAP
:
1322 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1323 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1324 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1325 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1326 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1327 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1328 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_cube_map
;
1330 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1331 case GL_TEXTURE_2D_ARRAY_EXT
:
1332 target_can_be_compresed
= ctx
->Extensions
.EXT_texture_array
;
1334 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1335 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1336 /* From the KHR_texture_compression_astc_hdr spec:
1338 * Add a second new column "3D Tex." which is empty for all non-ASTC
1339 * formats. If only the LDR profile is supported by the
1340 * implementation, this column is also empty for all ASTC formats. If
1341 * both the LDR and HDR profiles are supported only, this column is
1342 * checked for all ASTC formats.
1344 * Add a third new column "Cube Map Array Tex." which is empty for all
1345 * non-ASTC formats, and checked for all ASTC formats.
1349 * 'An INVALID_OPERATION error is generated by CompressedTexImage3D
1350 * if <internalformat> is TEXTURE_CUBE_MAP_ARRAY and the
1351 * "Cube Map Array" column of table 8.19 is *not* checked, or if
1352 * <internalformat> is TEXTURE_3D and the "3D Tex." column of table
1353 * 8.19 is *not* checked'
1355 * The instances of <internalformat> above should say <target>.
1357 * ETC2/EAC formats are the only alternative in GLES and thus such errors
1358 * have already been handled by normal ETC2/EAC behavior.
1361 /* From section 3.8.6, page 146 of OpenGL ES 3.0 spec:
1363 * "The ETC2/EAC texture compression algorithm supports only
1364 * two-dimensional images. If internalformat is an ETC2/EAC format,
1365 * glCompressedTexImage3D will generate an INVALID_OPERATION error if
1366 * target is not TEXTURE_2D_ARRAY."
1368 * This should also be applicable for glTexStorage3D(). Other available
1369 * targets for these functions are: TEXTURE_3D and TEXTURE_CUBE_MAP_ARRAY.
1371 if (layout
== MESA_FORMAT_LAYOUT_ETC2
&& _mesa_is_gles3(ctx
))
1372 return write_error(error
, GL_INVALID_OPERATION
);
1373 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_cube_map_array
;
1377 case MESA_FORMAT_LAYOUT_ETC2
:
1378 /* See ETC2/EAC comment in case GL_TEXTURE_CUBE_MAP_ARRAY. */
1379 if (_mesa_is_gles3(ctx
))
1380 return write_error(error
, GL_INVALID_OPERATION
);
1382 case MESA_FORMAT_LAYOUT_BPTC
:
1383 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_compression_bptc
;
1385 case MESA_FORMAT_LAYOUT_ASTC
:
1386 target_can_be_compresed
=
1387 ctx
->Extensions
.KHR_texture_compression_astc_hdr
;
1389 /* Throw an INVALID_OPERATION error if the target is TEXTURE_3D and
1390 * and the hdr extension is not supported.
1391 * See comment in switch case GL_TEXTURE_CUBE_MAP_ARRAY for more info.
1393 if (!target_can_be_compresed
)
1394 return write_error(error
, GL_INVALID_OPERATION
);
1402 return write_error(error
,
1403 target_can_be_compresed
? GL_NO_ERROR
: GL_INVALID_ENUM
);
1408 * Check if the given texture target value is legal for a
1409 * glTexImage1/2/3D call.
1412 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1418 case GL_PROXY_TEXTURE_1D
:
1419 return _mesa_is_desktop_gl(ctx
);
1427 case GL_PROXY_TEXTURE_2D
:
1428 return _mesa_is_desktop_gl(ctx
);
1429 case GL_PROXY_TEXTURE_CUBE_MAP
:
1430 return _mesa_is_desktop_gl(ctx
)
1431 && ctx
->Extensions
.ARB_texture_cube_map
;
1432 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1433 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1434 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1435 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1436 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1437 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1438 return ctx
->Extensions
.ARB_texture_cube_map
;
1439 case GL_TEXTURE_RECTANGLE_NV
:
1440 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1441 return _mesa_is_desktop_gl(ctx
)
1442 && ctx
->Extensions
.NV_texture_rectangle
;
1443 case GL_TEXTURE_1D_ARRAY_EXT
:
1444 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1445 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1453 case GL_PROXY_TEXTURE_3D
:
1454 return _mesa_is_desktop_gl(ctx
);
1455 case GL_TEXTURE_2D_ARRAY_EXT
:
1456 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1457 || _mesa_is_gles3(ctx
);
1458 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1459 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1460 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1461 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1462 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1467 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1474 * Check if the given texture target value is legal for a
1475 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1476 * The difference compared to legal_teximage_target() above is that
1477 * proxy targets are not supported.
1480 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
,
1485 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1490 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1491 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1492 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1493 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1494 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1495 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1496 return ctx
->Extensions
.ARB_texture_cube_map
;
1497 case GL_TEXTURE_RECTANGLE_NV
:
1498 return _mesa_is_desktop_gl(ctx
)
1499 && ctx
->Extensions
.NV_texture_rectangle
;
1500 case GL_TEXTURE_1D_ARRAY_EXT
:
1501 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1509 case GL_TEXTURE_2D_ARRAY_EXT
:
1510 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1511 || _mesa_is_gles3(ctx
);
1512 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1513 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1514 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1516 /* Table 8.15 of the OpenGL 4.5 core profile spec
1517 * (20141030) says that TEXTURE_CUBE_MAP is valid for TextureSubImage3D
1518 * and CopyTextureSubImage3D.
1520 case GL_TEXTURE_CUBE_MAP
:
1526 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1534 * Helper function to determine if a texture object is mutable (in terms
1535 * of GL_ARB_texture_storage).
1538 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1540 struct gl_texture_object
*texObj
= _mesa_get_current_tex_object(ctx
, target
);
1544 return !texObj
->Immutable
;
1549 * Return expected size of a compressed texture.
1552 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1555 mesa_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1556 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1560 * Verify that a texture format is valid with a particular target
1562 * In particular, textures with base format of \c GL_DEPTH_COMPONENT or
1563 * \c GL_DEPTH_STENCIL are only valid with certain, context dependent texture
1566 * \param ctx GL context
1567 * \param target Texture target
1568 * \param internalFormat Internal format of the texture image
1569 * \param dimensions Dimensionality at the caller. This is \b not used
1570 * in the validation. It is only used when logging
1572 * \param caller Base name of the calling function (e.g.,
1573 * "glTexImage" or "glTexStorage").
1575 * \returns true if the combination is legal, false otherwise.
1578 _mesa_legal_texture_base_format_for_target(struct gl_context
*ctx
,
1579 GLenum target
, GLenum internalFormat
,
1580 unsigned dimensions
,
1583 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
1584 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_STENCIL
1585 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_STENCIL_INDEX
) {
1586 /* Section 3.8.3 (Texture Image Specification) of the OpenGL 3.3 Core
1587 * Profile spec says:
1589 * "Textures with a base internal format of DEPTH_COMPONENT or
1590 * DEPTH_STENCIL are supported by texture image specification
1591 * commands only if target is TEXTURE_1D, TEXTURE_2D,
1592 * TEXTURE_1D_ARRAY, TEXTURE_2D_ARRAY, TEXTURE_RECTANGLE,
1593 * TEXTURE_CUBE_MAP, PROXY_TEXTURE_1D, PROXY_TEXTURE_2D,
1594 * PROXY_TEXTURE_1D_ARRAY, PROXY_TEXTURE_2D_ARRAY,
1595 * PROXY_TEXTURE_RECTANGLE, or PROXY_TEXTURE_CUBE_MAP. Using these
1596 * formats in conjunction with any other target will result in an
1597 * INVALID_OPERATION error."
1599 * Cubemaps are only supported with desktop OpenGL version >= 3.0,
1600 * EXT_gpu_shader4, or, on OpenGL ES 2.0+, OES_depth_texture_cube_map.
1602 if (target
!= GL_TEXTURE_1D
&&
1603 target
!= GL_PROXY_TEXTURE_1D
&&
1604 target
!= GL_TEXTURE_2D
&&
1605 target
!= GL_PROXY_TEXTURE_2D
&&
1606 target
!= GL_TEXTURE_1D_ARRAY
&&
1607 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1608 target
!= GL_TEXTURE_2D_ARRAY
&&
1609 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1610 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1611 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1612 !((_mesa_is_cube_face(target
) ||
1613 target
== GL_TEXTURE_CUBE_MAP
||
1614 target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1615 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
1616 || (ctx
->API
== API_OPENGLES2
&& ctx
->Extensions
.OES_depth_texture_cube_map
))) &&
1617 !((target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
1618 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
) &&
1619 ctx
->Extensions
.ARB_texture_cube_map_array
)) {
1620 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1621 "%s%dD(bad target for depth texture)",
1622 caller
, dimensions
);
1631 texture_formats_agree(GLenum internalFormat
,
1634 GLboolean colorFormat
;
1635 GLboolean is_format_depth_or_depthstencil
;
1636 GLboolean is_internalFormat_depth_or_depthstencil
;
1638 /* Even though there are no color-index textures, we still have to support
1639 * uploading color-index data and remapping it to RGB via the
1640 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1642 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1644 is_internalFormat_depth_or_depthstencil
=
1645 _mesa_is_depth_format(internalFormat
) ||
1646 _mesa_is_depthstencil_format(internalFormat
);
1648 is_format_depth_or_depthstencil
=
1649 _mesa_is_depth_format(format
) ||
1650 _mesa_is_depthstencil_format(format
);
1652 colorFormat
= _mesa_is_color_format(format
);
1654 if (_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
)
1657 if (is_internalFormat_depth_or_depthstencil
!=
1658 is_format_depth_or_depthstencil
)
1661 if (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
))
1668 * Test the combination of format, type and internal format arguments of
1669 * different texture operations on GLES.
1671 * \param ctx GL context.
1672 * \param format pixel data format given by the user.
1673 * \param type pixel data type given by the user.
1674 * \param internalFormat internal format given by the user.
1675 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1676 * \param callerName name of the caller function to print in the error message
1678 * \return true if a error is found, false otherwise
1680 * Currently, it is used by texture_error_check() and texsubimage_error_check().
1683 texture_format_error_check_gles(struct gl_context
*ctx
, GLenum format
,
1684 GLenum type
, GLenum internalFormat
,
1685 GLuint dimensions
, const char *callerName
)
1689 if (_mesa_is_gles3(ctx
)) {
1690 err
= _mesa_es3_error_check_format_and_type(ctx
, format
, type
,
1692 if (err
!= GL_NO_ERROR
) {
1693 _mesa_error(ctx
, err
,
1694 "%s(format = %s, type = %s, internalformat = %s)",
1695 callerName
, _mesa_enum_to_string(format
),
1696 _mesa_enum_to_string(type
),
1697 _mesa_enum_to_string(internalFormat
));
1702 err
= _mesa_es_error_check_format_and_type(ctx
, format
, type
, dimensions
);
1703 if (err
!= GL_NO_ERROR
) {
1704 _mesa_error(ctx
, err
, "%s(format = %s, type = %s)",
1705 callerName
, _mesa_enum_to_string(format
),
1706 _mesa_enum_to_string(type
));
1715 * Test the glTexImage[123]D() parameters for errors.
1717 * \param ctx GL context.
1718 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1719 * \param target texture target given by the user (already validated).
1720 * \param level image level given by the user.
1721 * \param internalFormat internal format given by the user.
1722 * \param format pixel data format given by the user.
1723 * \param type pixel data type given by the user.
1724 * \param width image width given by the user.
1725 * \param height image height given by the user.
1726 * \param depth image depth given by the user.
1727 * \param border image border given by the user.
1729 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1731 * Verifies each of the parameters against the constants specified in
1732 * __struct gl_contextRec::Const and the supported extensions, and according
1733 * to the OpenGL specification.
1734 * Note that we don't fully error-check the width, height, depth values
1735 * here. That's done in _mesa_legal_texture_dimensions() which is used
1736 * by several other GL entrypoints. Plus, texture dims have a special
1737 * interaction with proxy textures.
1740 texture_error_check( struct gl_context
*ctx
,
1741 GLuint dimensions
, GLenum target
,
1742 GLint level
, GLint internalFormat
,
1743 GLenum format
, GLenum type
,
1744 GLint width
, GLint height
,
1745 GLint depth
, GLint border
,
1746 const GLvoid
*pixels
)
1750 /* Note: for proxy textures, some error conditions immediately generate
1751 * a GL error in the usual way. But others do not generate a GL error.
1752 * Instead, they cause the width, height, depth, format fields of the
1753 * texture image to be zeroed-out. The GL spec seems to indicate that the
1754 * zero-out behaviour is only used in cases related to memory allocation.
1758 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1759 _mesa_error(ctx
, GL_INVALID_VALUE
,
1760 "glTexImage%dD(level=%d)", dimensions
, level
);
1765 if (border
< 0 || border
> 1 ||
1766 ((ctx
->API
!= API_OPENGL_COMPAT
||
1767 target
== GL_TEXTURE_RECTANGLE_NV
||
1768 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1769 _mesa_error(ctx
, GL_INVALID_VALUE
,
1770 "glTexImage%dD(border=%d)", dimensions
, border
);
1774 if (width
< 0 || height
< 0 || depth
< 0) {
1775 _mesa_error(ctx
, GL_INVALID_VALUE
,
1776 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1780 /* Check incoming image format and type */
1781 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1782 if (err
!= GL_NO_ERROR
) {
1783 /* Prior to OpenGL-ES 2.0, an INVALID_VALUE is expected instead of
1784 * INVALID_ENUM. From page 73 OpenGL ES 1.1 spec:
1786 * "Specifying a value for internalformat that is not one of the
1787 * above (acceptable) values generates the error INVALID VALUE."
1789 if (err
== GL_INVALID_ENUM
&& _mesa_is_gles(ctx
) && ctx
->Version
< 20)
1790 err
= GL_INVALID_VALUE
;
1792 _mesa_error(ctx
, err
,
1793 "glTexImage%dD(incompatible format = %s, type = %s)",
1794 dimensions
, _mesa_enum_to_string(format
),
1795 _mesa_enum_to_string(type
));
1799 /* Check internalFormat */
1800 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1801 _mesa_error(ctx
, GL_INVALID_VALUE
,
1802 "glTexImage%dD(internalFormat=%s)",
1803 dimensions
, _mesa_enum_to_string(internalFormat
));
1807 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1808 * combinations of format, internalFormat, and type that can be used.
1809 * Formats and types that require additional extensions (e.g., GL_FLOAT
1810 * requires GL_OES_texture_float) are filtered elsewhere.
1812 if (_mesa_is_gles(ctx
) &&
1813 texture_format_error_check_gles(ctx
, format
, type
, internalFormat
,
1814 dimensions
, "glTexImage%dD")) {
1818 /* validate the bound PBO, if any */
1819 if (!_mesa_validate_pbo_source(ctx
, dimensions
, &ctx
->Unpack
,
1820 width
, height
, depth
, format
, type
,
1821 INT_MAX
, pixels
, "glTexImage")) {
1825 /* make sure internal format and format basically agree */
1826 if (!texture_formats_agree(internalFormat
, format
)) {
1827 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1828 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
1829 dimensions
, _mesa_enum_to_string(internalFormat
),
1830 _mesa_enum_to_string(format
));
1834 /* additional checks for ycbcr textures */
1835 if (internalFormat
== GL_YCBCR_MESA
) {
1836 assert(ctx
->Extensions
.MESA_ycbcr_texture
);
1837 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1838 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1840 _mesa_snprintf(message
, sizeof(message
),
1841 "glTexImage%dD(format/type YCBCR mismatch)",
1843 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1844 return GL_TRUE
; /* error */
1846 if (target
!= GL_TEXTURE_2D
&&
1847 target
!= GL_PROXY_TEXTURE_2D
&&
1848 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1849 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1850 _mesa_error(ctx
, GL_INVALID_ENUM
,
1851 "glTexImage%dD(bad target for YCbCr texture)",
1857 _mesa_snprintf(message
, sizeof(message
),
1858 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1859 dimensions
, border
);
1860 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1865 /* additional checks for depth textures */
1866 if (!_mesa_legal_texture_base_format_for_target(ctx
, target
, internalFormat
,
1867 dimensions
, "glTexImage"))
1870 /* additional checks for compressed textures */
1871 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1873 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &err
)) {
1874 _mesa_error(ctx
, err
,
1875 "glTexImage%dD(target can't be compressed)", dimensions
);
1878 if (_mesa_format_no_online_compression(ctx
, internalFormat
)) {
1879 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1880 "glTexImage%dD(no compression for format)", dimensions
);
1884 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1885 "glTexImage%dD(border!=0)", dimensions
);
1890 /* additional checks for integer textures */
1891 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1892 (_mesa_is_enum_format_integer(format
) !=
1893 _mesa_is_enum_format_integer(internalFormat
))) {
1894 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1895 "glTexImage%dD(integer/non-integer format mismatch)",
1900 if (!mutable_tex_object(ctx
, target
)) {
1901 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1902 "glTexImage%dD(immutable texture)", dimensions
);
1906 /* if we get here, the parameters are OK */
1912 * Error checking for glCompressedTexImage[123]D().
1913 * Note that the width, height and depth values are not fully error checked
1915 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1918 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
1919 GLenum target
, GLint level
,
1920 GLenum internalFormat
, GLsizei width
,
1921 GLsizei height
, GLsizei depth
, GLint border
,
1922 GLsizei imageSize
, const GLvoid
*data
)
1924 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
1926 GLenum error
= GL_NO_ERROR
;
1927 char *reason
= ""; /* no error */
1929 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &error
)) {
1934 /* This will detect any invalid internalFormat value */
1935 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
1936 _mesa_error(ctx
, GL_INVALID_ENUM
,
1937 "glCompressedTexImage%dD(internalFormat=%s)",
1938 dimensions
, _mesa_enum_to_string(internalFormat
));
1942 /* validate the bound PBO, if any */
1943 if (!_mesa_validate_pbo_source_compressed(ctx
, dimensions
, &ctx
->Unpack
,
1945 "glCompressedTexImage")) {
1949 switch (internalFormat
) {
1950 case GL_PALETTE4_RGB8_OES
:
1951 case GL_PALETTE4_RGBA8_OES
:
1952 case GL_PALETTE4_R5_G6_B5_OES
:
1953 case GL_PALETTE4_RGBA4_OES
:
1954 case GL_PALETTE4_RGB5_A1_OES
:
1955 case GL_PALETTE8_RGB8_OES
:
1956 case GL_PALETTE8_RGBA8_OES
:
1957 case GL_PALETTE8_R5_G6_B5_OES
:
1958 case GL_PALETTE8_RGBA4_OES
:
1959 case GL_PALETTE8_RGB5_A1_OES
:
1960 /* check level (note that level should be zero or less!) */
1961 if (level
> 0 || level
< -maxLevels
) {
1963 error
= GL_INVALID_VALUE
;
1967 if (dimensions
!= 2) {
1968 reason
= "compressed paletted textures must be 2D";
1969 error
= GL_INVALID_OPERATION
;
1973 /* Figure out the expected texture size (in bytes). This will be
1974 * checked against the actual size later.
1976 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
1979 /* This is for the benefit of the TestProxyTexImage below. It expects
1980 * level to be non-negative. OES_compressed_paletted_texture uses a
1981 * weird mechanism where the level specified to glCompressedTexImage2D
1982 * is -(n-1) number of levels in the texture, and the data specifies the
1983 * complete mipmap stack. This is done to ensure the palette is the
1984 * same for all levels.
1991 if (level
< 0 || level
>= maxLevels
) {
1993 error
= GL_INVALID_VALUE
;
1997 /* Figure out the expected texture size (in bytes). This will be
1998 * checked against the actual size later.
2000 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2004 /* This should really never fail */
2005 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2006 reason
= "internalFormat";
2007 error
= GL_INVALID_ENUM
;
2011 /* No compressed formats support borders at this time */
2013 reason
= "border != 0";
2014 error
= GL_INVALID_VALUE
;
2018 /* Check for invalid pixel storage modes */
2019 if (!_mesa_compressed_pixel_storage_error_check(ctx
, dimensions
,
2021 "glCompressedTexImage")) {
2025 /* check image size in bytes */
2026 if (expectedSize
!= imageSize
) {
2027 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2028 * if <imageSize> is not consistent with the format, dimensions, and
2029 * contents of the specified image.
2031 reason
= "imageSize inconsistent with width/height/format";
2032 error
= GL_INVALID_VALUE
;
2036 if (!mutable_tex_object(ctx
, target
)) {
2037 reason
= "immutable texture";
2038 error
= GL_INVALID_OPERATION
;
2045 /* Note: not all error paths exit through here. */
2046 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)",
2047 dimensions
, reason
);
2054 * Test glTexSubImage[123]D() parameters for errors.
2056 * \param ctx GL context.
2057 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2058 * \param target texture target given by the user (already validated)
2059 * \param level image level given by the user.
2060 * \param xoffset sub-image x offset given by the user.
2061 * \param yoffset sub-image y offset given by the user.
2062 * \param zoffset sub-image z offset given by the user.
2063 * \param format pixel data format given by the user.
2064 * \param type pixel data type given by the user.
2065 * \param width image width given by the user.
2066 * \param height image height given by the user.
2067 * \param depth image depth given by the user.
2069 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2071 * Verifies each of the parameters against the constants specified in
2072 * __struct gl_contextRec::Const and the supported extensions, and according
2073 * to the OpenGL specification.
2076 texsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2077 struct gl_texture_object
*texObj
,
2078 GLenum target
, GLint level
,
2079 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2080 GLint width
, GLint height
, GLint depth
,
2081 GLenum format
, GLenum type
, const GLvoid
*pixels
,
2082 bool dsa
, const char *callerName
)
2084 struct gl_texture_image
*texImage
;
2088 /* must be out of memory */
2089 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", callerName
);
2094 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2095 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level=%d)", callerName
, level
);
2099 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
2101 /* non-existant texture level */
2102 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid texture image)",
2107 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2108 if (err
!= GL_NO_ERROR
) {
2109 _mesa_error(ctx
, err
,
2110 "%s(incompatible format = %s, type = %s)",
2111 callerName
, _mesa_enum_to_string(format
),
2112 _mesa_enum_to_string(type
));
2116 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2117 * combinations of format, internalFormat, and type that can be used.
2118 * Formats and types that require additional extensions (e.g., GL_FLOAT
2119 * requires GL_OES_texture_float) are filtered elsewhere.
2121 if (_mesa_is_gles(ctx
) &&
2122 texture_format_error_check_gles(ctx
, format
, type
,
2123 texImage
->InternalFormat
,
2124 dimensions
, callerName
)) {
2128 /* validate the bound PBO, if any */
2129 if (!_mesa_validate_pbo_source(ctx
, dimensions
, &ctx
->Unpack
,
2130 width
, height
, depth
, format
, type
,
2131 INT_MAX
, pixels
, callerName
)) {
2135 if (error_check_subtexture_dimensions(ctx
, dimensions
,
2136 texImage
, xoffset
, yoffset
, zoffset
,
2137 width
, height
, depth
, callerName
)) {
2141 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2142 if (_mesa_format_no_online_compression(ctx
, texImage
->InternalFormat
)) {
2143 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2144 "%s(no compression for format)", callerName
);
2149 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2150 /* both source and dest must be integer-valued, or neither */
2151 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
2152 _mesa_is_enum_format_integer(format
)) {
2153 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2154 "%s(integer/non-integer format mismatch)", callerName
);
2164 * Test glCopyTexImage[12]D() parameters for errors.
2166 * \param ctx GL context.
2167 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2168 * \param target texture target given by the user.
2169 * \param level image level given by the user.
2170 * \param internalFormat internal format given by the user.
2171 * \param width image width given by the user.
2172 * \param height image height given by the user.
2173 * \param border texture border.
2175 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2177 * Verifies each of the parameters against the constants specified in
2178 * __struct gl_contextRec::Const and the supported extensions, and according
2179 * to the OpenGL specification.
2182 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2183 GLenum target
, GLint level
, GLint internalFormat
,
2184 GLint width
, GLint height
, GLint border
)
2187 GLint rb_base_format
;
2188 struct gl_renderbuffer
*rb
;
2189 GLenum rb_internal_format
;
2192 if (!legal_texsubimage_target(ctx
, dimensions
, target
, false)) {
2193 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2194 dimensions
, _mesa_enum_to_string(target
));
2199 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2200 _mesa_error(ctx
, GL_INVALID_VALUE
,
2201 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2205 /* Check that the source buffer is complete */
2206 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2207 if (ctx
->ReadBuffer
->_Status
== 0) {
2208 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2210 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2211 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2212 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2216 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2217 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2218 "glCopyTexImage%dD(multisample FBO)", dimensions
);
2224 if (border
< 0 || border
> 1 ||
2225 ((ctx
->API
!= API_OPENGL_COMPAT
||
2226 target
== GL_TEXTURE_RECTANGLE_NV
||
2227 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2228 _mesa_error(ctx
, GL_INVALID_VALUE
,
2229 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2233 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2236 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2237 switch (internalFormat
) {
2242 case GL_LUMINANCE_ALPHA
:
2245 _mesa_error(ctx
, GL_INVALID_ENUM
,
2246 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2247 _mesa_enum_to_string(internalFormat
));
2252 * Section 8.6 (Alternate Texture Image Specification Commands) of the
2253 * OpenGL 4.5 (Compatibility Profile) spec says:
2255 * "Parameters level, internalformat, and border are specified using
2256 * the same values, with the same meanings, as the corresponding
2257 * arguments of TexImage2D, except that internalformat may not be
2258 * specified as 1, 2, 3, or 4."
2260 if (internalFormat
>= 1 && internalFormat
<= 4) {
2261 _mesa_error(ctx
, GL_INVALID_ENUM
,
2262 "glCopyTexImage%dD(internalFormat=%d)", dimensions
,
2268 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2269 if (baseFormat
< 0) {
2270 _mesa_error(ctx
, GL_INVALID_ENUM
,
2271 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2272 _mesa_enum_to_string(internalFormat
));
2276 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
2278 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2279 "glCopyTexImage%dD(read buffer)", dimensions
);
2283 rb_internal_format
= rb
->InternalFormat
;
2284 rb_base_format
= _mesa_base_tex_format(ctx
, rb
->InternalFormat
);
2285 if (_mesa_is_color_format(internalFormat
)) {
2286 if (rb_base_format
< 0) {
2287 _mesa_error(ctx
, GL_INVALID_VALUE
,
2288 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2289 _mesa_enum_to_string(internalFormat
));
2294 if (_mesa_is_gles(ctx
)) {
2296 if (_mesa_base_format_component_count(baseFormat
) >
2297 _mesa_base_format_component_count(rb_base_format
)) {
2300 if (baseFormat
== GL_DEPTH_COMPONENT
||
2301 baseFormat
== GL_DEPTH_STENCIL
||
2302 rb_base_format
== GL_DEPTH_COMPONENT
||
2303 rb_base_format
== GL_DEPTH_STENCIL
||
2304 ((baseFormat
== GL_LUMINANCE_ALPHA
||
2305 baseFormat
== GL_ALPHA
) &&
2306 rb_base_format
!= GL_RGBA
) ||
2307 internalFormat
== GL_RGB9_E5
) {
2310 if (internalFormat
== GL_RGB9_E5
) {
2314 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2315 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2316 _mesa_enum_to_string(internalFormat
));
2321 if (_mesa_is_gles3(ctx
)) {
2322 bool rb_is_srgb
= false;
2323 bool dst_is_srgb
= false;
2325 if (ctx
->Extensions
.EXT_framebuffer_sRGB
&&
2326 _mesa_get_format_color_encoding(rb
->Format
) == GL_SRGB
) {
2330 if (_mesa_get_linear_internalformat(internalFormat
) != internalFormat
) {
2334 if (rb_is_srgb
!= dst_is_srgb
) {
2335 /* Page 137 (page 149 of the PDF) in section 3.8.5 of the
2336 * OpenGLES 3.0.0 spec says:
2338 * "The error INVALID_OPERATION is also generated if the
2339 * value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING for the
2340 * framebuffer attachment corresponding to the read buffer
2341 * is LINEAR (see section 6.1.13) and internalformat is
2342 * one of the sRGB formats described in section 3.8.16, or
2343 * if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING is
2344 * SRGB and internalformat is not one of the sRGB formats."
2346 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2347 "glCopyTexImage%dD(srgb usage mismatch)", dimensions
);
2351 /* Page 139, Table 3.15 of OpenGL ES 3.0 spec does not define ReadPixels
2352 * types for SNORM formats. Also, conversion to SNORM formats is not
2353 * allowed by Table 3.2 on Page 110.
2355 if (_mesa_is_enum_format_snorm(internalFormat
)) {
2356 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2357 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2358 _mesa_enum_to_string(internalFormat
));
2363 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2364 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2365 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2369 /* From the EXT_texture_integer spec:
2371 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2372 * if the texture internalformat is an integer format and the read color
2373 * buffer is not an integer format, or if the internalformat is not an
2374 * integer format and the read color buffer is an integer format."
2376 if (_mesa_is_color_format(internalFormat
)) {
2377 bool is_int
= _mesa_is_enum_format_integer(internalFormat
);
2378 bool is_rbint
= _mesa_is_enum_format_integer(rb_internal_format
);
2379 bool is_unorm
= _mesa_is_enum_format_unorm(internalFormat
);
2380 bool is_rbunorm
= _mesa_is_enum_format_unorm(rb_internal_format
);
2381 if (is_int
|| is_rbint
) {
2382 if (is_int
!= is_rbint
) {
2383 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2384 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2386 } else if (_mesa_is_gles(ctx
) &&
2387 _mesa_is_enum_format_unsigned_int(internalFormat
) !=
2388 _mesa_is_enum_format_unsigned_int(rb_internal_format
)) {
2389 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2390 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions
);
2395 /* From page 138 of OpenGL ES 3.0 spec:
2396 * "The error INVALID_OPERATION is generated if floating-point RGBA
2397 * data is required; if signed integer RGBA data is required and the
2398 * format of the current color buffer is not signed integer; if
2399 * unsigned integer RGBA data is required and the format of the
2400 * current color buffer is not unsigned integer; or if fixed-point
2401 * RGBA data is required and the format of the current color buffer
2402 * is not fixed-point.
2404 if (_mesa_is_gles(ctx
) && is_unorm
!= is_rbunorm
)
2405 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2406 "glCopyTexImage%dD(unorm vs non-unorm)", dimensions
);
2409 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2411 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &err
)) {
2412 _mesa_error(ctx
, err
,
2413 "glCopyTexImage%dD(target can't be compressed)", dimensions
);
2416 if (_mesa_format_no_online_compression(ctx
, internalFormat
)) {
2417 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2418 "glCopyTexImage%dD(no compression for format)", dimensions
);
2422 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2423 "glCopyTexImage%dD(border!=0)", dimensions
);
2428 if (!mutable_tex_object(ctx
, target
)) {
2429 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2430 "glCopyTexImage%dD(immutable texture)", dimensions
);
2434 /* if we get here, the parameters are OK */
2440 * Test glCopyTexSubImage[12]D() parameters for errors.
2441 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2444 copytexsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2445 const struct gl_texture_object
*texObj
,
2446 GLenum target
, GLint level
,
2447 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2448 GLint width
, GLint height
, const char *caller
)
2450 struct gl_texture_image
*texImage
;
2452 /* Check that the source buffer is complete */
2453 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2454 if (ctx
->ReadBuffer
->_Status
== 0) {
2455 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2457 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2458 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2459 "%s(invalid readbuffer)", caller
);
2463 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2464 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2465 "%s(multisample FBO)", caller
);
2471 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2472 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level=%d)", caller
, level
);
2476 /* Get dest image pointers */
2478 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", caller
);
2482 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
2484 /* destination image does not exist */
2485 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2486 "%s(invalid texture image)", caller
);
2490 if (error_check_subtexture_dimensions(ctx
, dimensions
, texImage
,
2491 xoffset
, yoffset
, zoffset
,
2492 width
, height
, 1, caller
)) {
2496 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2497 if (_mesa_format_no_online_compression(ctx
, texImage
->InternalFormat
)) {
2498 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2499 "%s(no compression for format)", caller
);
2504 if (texImage
->InternalFormat
== GL_YCBCR_MESA
) {
2505 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s()", caller
);
2509 if (!_mesa_source_buffer_exists(ctx
, texImage
->_BaseFormat
)) {
2510 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2511 "%s(missing readbuffer, format=%s)", caller
,
2512 _mesa_enum_to_string(texImage
->_BaseFormat
));
2516 /* From the EXT_texture_integer spec:
2518 * "INVALID_OPERATION is generated by CopyTexImage* and
2519 * CopyTexSubImage* if the texture internalformat is an integer format
2520 * and the read color buffer is not an integer format, or if the
2521 * internalformat is not an integer format and the read color buffer
2522 * is an integer format."
2524 if (_mesa_is_color_format(texImage
->InternalFormat
)) {
2525 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2527 if (_mesa_is_format_integer_color(rb
->Format
) !=
2528 _mesa_is_format_integer_color(texImage
->TexFormat
)) {
2529 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2530 "%s(integer vs non-integer)", caller
);
2535 /* if we get here, the parameters are OK */
2540 /** Callback info for walking over FBO hash table */
2543 struct gl_context
*ctx
;
2544 struct gl_texture_object
*texObj
;
2550 * Check render to texture callback. Called from _mesa_HashWalk().
2553 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2555 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2556 const struct cb_info
*info
= (struct cb_info
*) userData
;
2557 struct gl_context
*ctx
= info
->ctx
;
2558 const struct gl_texture_object
*texObj
= info
->texObj
;
2559 const GLuint level
= info
->level
, face
= info
->face
;
2561 /* If this is a user-created FBO */
2562 if (_mesa_is_user_fbo(fb
)) {
2564 /* check if any of the FBO's attachments point to 'texObj' */
2565 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2566 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2567 if (att
->Type
== GL_TEXTURE
&&
2568 att
->Texture
== texObj
&&
2569 att
->TextureLevel
== level
&&
2570 att
->CubeMapFace
== face
) {
2571 _mesa_update_texture_renderbuffer(ctx
, ctx
->DrawBuffer
, att
);
2572 assert(att
->Renderbuffer
->TexImage
);
2573 /* Mark fb status as indeterminate to force re-validation */
2582 * When a texture image is specified we have to check if it's bound to
2583 * any framebuffer objects (render to texture) in order to detect changes
2584 * in size or format since that effects FBO completeness.
2585 * Any FBOs rendering into the texture must be re-validated.
2588 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2589 struct gl_texture_object
*texObj
,
2590 GLuint face
, GLuint level
)
2592 /* Only check this texture if it's been marked as RenderToTexture */
2593 if (texObj
->_RenderToTexture
) {
2594 struct cb_info info
;
2596 info
.texObj
= texObj
;
2599 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2605 * If the texture object's GenerateMipmap flag is set and we've
2606 * changed the texture base level image, regenerate the rest of the
2607 * mipmap levels now.
2610 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2611 struct gl_texture_object
*texObj
, GLint level
)
2613 if (texObj
->GenerateMipmap
&&
2614 level
== texObj
->BaseLevel
&&
2615 level
< texObj
->MaxLevel
) {
2616 assert(ctx
->Driver
.GenerateMipmap
);
2617 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2622 /** Debug helper: override the user-requested internal format */
2624 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2627 if (internalFormat
== GL_RGBA16F_ARB
||
2628 internalFormat
== GL_RGBA32F_ARB
) {
2629 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2632 else if (internalFormat
== GL_RGB16F_ARB
||
2633 internalFormat
== GL_RGB32F_ARB
) {
2634 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2637 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2638 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2639 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2640 return GL_LUMINANCE_ALPHA
;
2642 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2643 internalFormat
== GL_LUMINANCE32F_ARB
) {
2644 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2645 return GL_LUMINANCE
;
2647 else if (internalFormat
== GL_ALPHA16F_ARB
||
2648 internalFormat
== GL_ALPHA32F_ARB
) {
2649 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2653 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2654 internalFormat = GL_RGBA;
2658 return internalFormat
;
2661 return internalFormat
;
2667 * Choose the actual hardware format for a texture image.
2668 * Try to use the same format as the previous image level when possible.
2669 * Otherwise, ask the driver for the best format.
2670 * It's important to try to choose a consistant format for all levels
2671 * for efficient texture memory layout/allocation. In particular, this
2672 * comes up during automatic mipmap generation.
2675 _mesa_choose_texture_format(struct gl_context
*ctx
,
2676 struct gl_texture_object
*texObj
,
2677 GLenum target
, GLint level
,
2678 GLenum internalFormat
, GLenum format
, GLenum type
)
2682 /* see if we've already chosen a format for the previous level */
2684 struct gl_texture_image
*prevImage
=
2685 _mesa_select_tex_image(texObj
, target
, level
- 1);
2686 /* See if the prev level is defined and has an internal format which
2687 * matches the new internal format.
2690 prevImage
->Width
> 0 &&
2691 prevImage
->InternalFormat
== internalFormat
) {
2692 /* use the same format */
2693 assert(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2694 return prevImage
->TexFormat
;
2698 /* If the application requested compression to an S3TC format but we don't
2699 * have the DXTn library, force a generic compressed format instead.
2701 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2702 const GLenum before
= internalFormat
;
2704 switch (internalFormat
) {
2705 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2706 if (!ctx
->Mesa_DXTn
)
2707 internalFormat
= GL_COMPRESSED_RGB
;
2709 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2710 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2711 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2712 if (!ctx
->Mesa_DXTn
)
2713 internalFormat
= GL_COMPRESSED_RGBA
;
2719 if (before
!= internalFormat
) {
2721 "DXT compression requested (%s), "
2722 "but libtxc_dxtn library not installed. Using %s "
2724 _mesa_enum_to_string(before
),
2725 _mesa_enum_to_string(internalFormat
));
2729 /* choose format from scratch */
2730 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
, internalFormat
,
2732 assert(f
!= MESA_FORMAT_NONE
);
2738 * Adjust pixel unpack params and image dimensions to strip off the
2739 * one-pixel texture border.
2741 * Gallium and intel don't support texture borders. They've seldem been used
2742 * and seldom been implemented correctly anyway.
2744 * \param unpackNew returns the new pixel unpack parameters
2747 strip_texture_border(GLenum target
,
2748 GLint
*width
, GLint
*height
, GLint
*depth
,
2749 const struct gl_pixelstore_attrib
*unpack
,
2750 struct gl_pixelstore_attrib
*unpackNew
)
2756 *unpackNew
= *unpack
;
2758 if (unpackNew
->RowLength
== 0)
2759 unpackNew
->RowLength
= *width
;
2761 if (unpackNew
->ImageHeight
== 0)
2762 unpackNew
->ImageHeight
= *height
;
2764 assert(*width
>= 3);
2765 unpackNew
->SkipPixels
++; /* skip the border */
2766 *width
= *width
- 2; /* reduce the width by two border pixels */
2768 /* The min height of a texture with a border is 3 */
2769 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2770 unpackNew
->SkipRows
++; /* skip the border */
2771 *height
= *height
- 2; /* reduce the height by two border pixels */
2775 target
!= GL_TEXTURE_2D_ARRAY
&&
2776 target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
2777 unpackNew
->SkipImages
++; /* skip the border */
2778 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2784 * Common code to implement all the glTexImage1D/2D/3D functions
2785 * as well as glCompressedTexImage1D/2D/3D.
2786 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2787 * \param format the user's image format (only used if !compressed)
2788 * \param type the user's image type (only used if !compressed)
2789 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2792 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2793 GLenum target
, GLint level
, GLint internalFormat
,
2794 GLsizei width
, GLsizei height
, GLsizei depth
,
2795 GLint border
, GLenum format
, GLenum type
,
2796 GLsizei imageSize
, const GLvoid
*pixels
)
2798 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2799 struct gl_pixelstore_attrib unpack_no_border
;
2800 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2801 struct gl_texture_object
*texObj
;
2802 mesa_format texFormat
;
2803 GLboolean dimensionsOK
, sizeOK
;
2805 FLUSH_VERTICES(ctx
, 0);
2807 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2810 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2812 _mesa_enum_to_string(target
), level
,
2813 _mesa_enum_to_string(internalFormat
),
2814 width
, height
, depth
, border
, pixels
);
2817 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2819 _mesa_enum_to_string(target
), level
,
2820 _mesa_enum_to_string(internalFormat
),
2821 width
, height
, depth
, border
,
2822 _mesa_enum_to_string(format
),
2823 _mesa_enum_to_string(type
), pixels
);
2826 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2828 /* target error checking */
2829 if (!legal_teximage_target(ctx
, dims
, target
)) {
2830 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2831 func
, dims
, _mesa_enum_to_string(target
));
2835 /* general error checking */
2837 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
2839 width
, height
, depth
,
2840 border
, imageSize
, pixels
))
2844 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2845 format
, type
, width
, height
, depth
, border
,
2850 /* Here we convert a cpal compressed image into a regular glTexImage2D
2851 * call by decompressing the texture. If we really want to support cpal
2852 * textures in any driver this would have to be changed.
2854 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
2855 switch (internalFormat
) {
2856 case GL_PALETTE4_RGB8_OES
:
2857 case GL_PALETTE4_RGBA8_OES
:
2858 case GL_PALETTE4_R5_G6_B5_OES
:
2859 case GL_PALETTE4_RGBA4_OES
:
2860 case GL_PALETTE4_RGB5_A1_OES
:
2861 case GL_PALETTE8_RGB8_OES
:
2862 case GL_PALETTE8_RGBA8_OES
:
2863 case GL_PALETTE8_R5_G6_B5_OES
:
2864 case GL_PALETTE8_RGBA4_OES
:
2865 case GL_PALETTE8_RGB5_A1_OES
:
2866 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2867 width
, height
, imageSize
, pixels
);
2872 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2876 /* For glCompressedTexImage() the driver has no choice about the
2877 * texture format since we'll never transcode the user's compressed
2878 * image data. The internalFormat was error checked earlier.
2880 texFormat
= _mesa_glenum_to_compressed_format(internalFormat
);
2883 /* In case of HALF_FLOAT_OES or FLOAT_OES, find corresponding sized
2884 * internal floating point format for the given base format.
2886 if (_mesa_is_gles(ctx
) && format
== internalFormat
) {
2887 if (type
== GL_FLOAT
) {
2888 texObj
->_IsFloat
= GL_TRUE
;
2889 } else if (type
== GL_HALF_FLOAT_OES
|| type
== GL_HALF_FLOAT
) {
2890 texObj
->_IsHalfFloat
= GL_TRUE
;
2893 internalFormat
= adjust_for_oes_float_texture(format
, type
);
2896 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2897 internalFormat
, format
, type
);
2900 assert(texFormat
!= MESA_FORMAT_NONE
);
2902 /* check that width, height, depth are legal for the mipmap level */
2903 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
2904 height
, depth
, border
);
2906 /* check that the texture won't take too much memory, etc */
2907 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, proxy_target(target
),
2909 width
, height
, depth
, border
);
2911 if (_mesa_is_proxy_texture(target
)) {
2912 /* Proxy texture: just clear or set state depending on error checking */
2913 struct gl_texture_image
*texImage
=
2914 get_proxy_tex_image(ctx
, target
, level
);
2917 return; /* GL_OUT_OF_MEMORY already recorded */
2919 if (dimensionsOK
&& sizeOK
) {
2920 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2921 border
, internalFormat
, texFormat
);
2924 clear_teximage_fields(texImage
);
2928 /* non-proxy target */
2929 const GLuint face
= _mesa_tex_target_to_face(target
);
2930 struct gl_texture_image
*texImage
;
2932 if (!dimensionsOK
) {
2933 _mesa_error(ctx
, GL_INVALID_VALUE
,
2934 "%s%uD(invalid width or height or depth)",
2940 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
2941 "%s%uD(image too large: %d x %d x %d, %s format)",
2942 func
, dims
, width
, height
, depth
,
2943 _mesa_enum_to_string(internalFormat
));
2947 /* Allow a hardware driver to just strip out the border, to provide
2948 * reliable but slightly incorrect hardware rendering instead of
2949 * rarely-tested software fallback rendering.
2951 if (border
&& ctx
->Const
.StripTextureBorder
) {
2952 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2955 unpack
= &unpack_no_border
;
2958 if (ctx
->NewState
& _NEW_PIXEL
)
2959 _mesa_update_state(ctx
);
2961 _mesa_lock_texture(ctx
, texObj
);
2963 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2966 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
2969 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2971 _mesa_init_teximage_fields(ctx
, texImage
,
2972 width
, height
, depth
,
2973 border
, internalFormat
, texFormat
);
2975 /* Give the texture to the driver. <pixels> may be null. */
2976 if (width
> 0 && height
> 0 && depth
> 0) {
2978 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
2982 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
2983 type
, pixels
, unpack
);
2987 check_gen_mipmap(ctx
, target
, texObj
, level
);
2989 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
2991 _mesa_dirty_texobj(ctx
, texObj
);
2994 _mesa_unlock_texture(ctx
, texObj
);
3001 * Called from the API. Note that width includes the border.
3004 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3005 GLsizei width
, GLint border
, GLenum format
,
3006 GLenum type
, const GLvoid
*pixels
)
3008 GET_CURRENT_CONTEXT(ctx
);
3009 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3010 border
, format
, type
, 0, pixels
);
3015 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3016 GLsizei width
, GLsizei height
, GLint border
,
3017 GLenum format
, GLenum type
,
3018 const GLvoid
*pixels
)
3020 GET_CURRENT_CONTEXT(ctx
);
3021 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3022 border
, format
, type
, 0, pixels
);
3027 * Called by the API or display list executor.
3028 * Note that width and height include the border.
3031 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3032 GLsizei width
, GLsizei height
, GLsizei depth
,
3033 GLint border
, GLenum format
, GLenum type
,
3034 const GLvoid
*pixels
)
3036 GET_CURRENT_CONTEXT(ctx
);
3037 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3038 width
, height
, depth
,
3039 border
, format
, type
, 0, pixels
);
3044 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3045 GLsizei width
, GLsizei height
, GLsizei depth
,
3046 GLint border
, GLenum format
, GLenum type
,
3047 const GLvoid
*pixels
)
3049 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3050 depth
, border
, format
, type
, pixels
);
3055 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3057 struct gl_texture_object
*texObj
;
3058 struct gl_texture_image
*texImage
;
3060 GET_CURRENT_CONTEXT(ctx
);
3061 FLUSH_VERTICES(ctx
, 0);
3065 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3067 case GL_TEXTURE_EXTERNAL_OES
:
3069 _mesa_is_gles(ctx
) ? ctx
->Extensions
.OES_EGL_image_external
: false;
3072 valid_target
= false;
3076 if (!valid_target
) {
3077 _mesa_error(ctx
, GL_INVALID_ENUM
,
3078 "glEGLImageTargetTexture2D(target=%d)", target
);
3083 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3084 "glEGLImageTargetTexture2D(image=%p)", image
);
3088 if (ctx
->NewState
& _NEW_PIXEL
)
3089 _mesa_update_state(ctx
);
3091 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3095 _mesa_lock_texture(ctx
, texObj
);
3097 if (texObj
->Immutable
) {
3098 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3099 "glEGLImageTargetTexture2D(texture is immutable)");
3100 _mesa_unlock_texture(ctx
, texObj
);
3104 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3106 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3108 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3110 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3111 texObj
, texImage
, image
);
3113 _mesa_dirty_texobj(ctx
, texObj
);
3115 _mesa_unlock_texture(ctx
, texObj
);
3120 * Helper that implements the glTexSubImage1/2/3D()
3121 * and glTextureSubImage1/2/3D() functions.
3124 _mesa_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
3125 struct gl_texture_object
*texObj
,
3126 struct gl_texture_image
*texImage
,
3127 GLenum target
, GLint level
,
3128 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3129 GLsizei width
, GLsizei height
, GLsizei depth
,
3130 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3133 FLUSH_VERTICES(ctx
, 0);
3135 if (ctx
->NewState
& _NEW_PIXEL
)
3136 _mesa_update_state(ctx
);
3138 _mesa_lock_texture(ctx
, texObj
);
3140 if (width
> 0 && height
> 0 && depth
> 0) {
3141 /* If we have a border, offset=-1 is legal. Bias by border width. */
3144 if (target
!= GL_TEXTURE_2D_ARRAY
)
3145 zoffset
+= texImage
->Border
;
3148 if (target
!= GL_TEXTURE_1D_ARRAY
)
3149 yoffset
+= texImage
->Border
;
3152 xoffset
+= texImage
->Border
;
3155 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3156 xoffset
, yoffset
, zoffset
,
3157 width
, height
, depth
,
3158 format
, type
, pixels
, &ctx
->Unpack
);
3160 check_gen_mipmap(ctx
, target
, texObj
, level
);
3162 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
3163 * the texel data, not the texture format, size, etc.
3167 _mesa_unlock_texture(ctx
, texObj
);
3171 * Implement all the glTexSubImage1/2/3D() functions.
3172 * Must split this out this way because of GL_TEXTURE_CUBE_MAP.
3175 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3176 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3177 GLsizei width
, GLsizei height
, GLsizei depth
,
3178 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3179 const char *callerName
)
3181 struct gl_texture_object
*texObj
;
3182 struct gl_texture_image
*texImage
;
3184 /* check target (proxies not allowed) */
3185 if (!legal_texsubimage_target(ctx
, dims
, target
, false)) {
3186 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3187 dims
, _mesa_enum_to_string(target
));
3191 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3195 if (texsubimage_error_check(ctx
, dims
, texObj
, target
, level
,
3196 xoffset
, yoffset
, zoffset
,
3197 width
, height
, depth
, format
, type
,
3198 pixels
, false, callerName
)) {
3199 return; /* error was detected */
3202 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
3203 /* texsubimage_error_check ensures that texImage is not NULL */
3205 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3206 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3208 _mesa_enum_to_string(target
), level
,
3209 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3210 _mesa_enum_to_string(format
),
3211 _mesa_enum_to_string(type
), pixels
);
3213 _mesa_texture_sub_image(ctx
, dims
, texObj
, texImage
, target
, level
,
3214 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3215 format
, type
, pixels
, false);
3220 * Implement all the glTextureSubImage1/2/3D() functions.
3221 * Must split this out this way because of GL_TEXTURE_CUBE_MAP.
3224 texturesubimage(struct gl_context
*ctx
, GLuint dims
,
3225 GLuint texture
, GLint level
,
3226 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3227 GLsizei width
, GLsizei height
, GLsizei depth
,
3228 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3229 const char *callerName
)
3231 struct gl_texture_object
*texObj
;
3232 struct gl_texture_image
*texImage
;
3235 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3237 "glTextureSubImage%uD %d %d %d %d %d %d %d %d %s %s %p\n",
3238 dims
, texture
, level
,
3239 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3240 _mesa_enum_to_string(format
),
3241 _mesa_enum_to_string(type
), pixels
);
3243 /* Get the texture object by Name. */
3244 texObj
= _mesa_lookup_texture(ctx
, texture
);
3246 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTextureSubImage%uD(texture)",
3251 /* check target (proxies not allowed) */
3252 if (!legal_texsubimage_target(ctx
, dims
, texObj
->Target
, true)) {
3253 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target=%s)",
3254 callerName
, _mesa_enum_to_string(texObj
->Target
));
3258 if (texsubimage_error_check(ctx
, dims
, texObj
, texObj
->Target
, level
,
3259 xoffset
, yoffset
, zoffset
,
3260 width
, height
, depth
, format
, type
,
3261 pixels
, true, callerName
)) {
3262 return; /* error was detected */
3266 /* Must handle special case GL_TEXTURE_CUBE_MAP. */
3267 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3271 * What do we do if the user created a texture with the following code
3272 * and then called this function with its handle?
3275 * glCreateTextures(GL_TEXTURE_CUBE_MAP, 1, &tex);
3276 * glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
3277 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, ...);
3278 * glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, ...);
3279 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, ...);
3280 * // Note: GL_TEXTURE_CUBE_MAP_NEGATIVE_Y not set, or given the
3281 * // wrong format, or given the wrong size, etc.
3282 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, ...);
3283 * glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, ...);
3285 * A bug has been filed against the spec for this case. In the
3286 * meantime, we will check for cube completeness.
3288 * According to Section 8.17 Texture Completeness in the OpenGL 4.5
3289 * Core Profile spec (30.10.2014):
3290 * "[A] cube map texture is cube complete if the
3291 * following conditions all hold true: The [base level] texture
3292 * images of each of the six cube map faces have identical, positive,
3293 * and square dimensions. The [base level] images were each specified
3294 * with the same internal format."
3296 * It seems reasonable to check for cube completeness of an arbitrary
3297 * level here so that the image data has a consistent format and size.
3299 if (!_mesa_cube_level_complete(texObj
, level
)) {
3300 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3301 "glTextureSubImage%uD(cube map incomplete)",
3306 imageStride
= _mesa_image_image_stride(&ctx
->Unpack
, width
, height
,
3308 /* Copy in each face. */
3309 for (i
= zoffset
; i
< zoffset
+ depth
; ++i
) {
3310 texImage
= texObj
->Image
[i
][level
];
3313 _mesa_texture_sub_image(ctx
, 3, texObj
, texImage
, texObj
->Target
,
3314 level
, xoffset
, yoffset
, 0,
3315 width
, height
, 1, format
,
3316 type
, pixels
, true);
3317 pixels
= (GLubyte
*) pixels
+ imageStride
;
3321 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
3324 _mesa_texture_sub_image(ctx
, dims
, texObj
, texImage
, texObj
->Target
,
3325 level
, xoffset
, yoffset
, zoffset
,
3326 width
, height
, depth
, format
,
3327 type
, pixels
, true);
3333 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3334 GLint xoffset
, GLsizei width
,
3335 GLenum format
, GLenum type
,
3336 const GLvoid
*pixels
)
3338 GET_CURRENT_CONTEXT(ctx
);
3339 texsubimage(ctx
, 1, target
, level
,
3342 format
, type
, pixels
, "glTexSubImage1D");
3347 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3348 GLint xoffset
, GLint yoffset
,
3349 GLsizei width
, GLsizei height
,
3350 GLenum format
, GLenum type
,
3351 const GLvoid
*pixels
)
3353 GET_CURRENT_CONTEXT(ctx
);
3354 texsubimage(ctx
, 2, target
, level
,
3355 xoffset
, yoffset
, 0,
3357 format
, type
, pixels
, "glTexSubImage2D");
3363 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3364 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3365 GLsizei width
, GLsizei height
, GLsizei depth
,
3366 GLenum format
, GLenum type
,
3367 const GLvoid
*pixels
)
3369 GET_CURRENT_CONTEXT(ctx
);
3370 texsubimage(ctx
, 3, target
, level
,
3371 xoffset
, yoffset
, zoffset
,
3372 width
, height
, depth
,
3373 format
, type
, pixels
, "glTexSubImage3D");
3377 _mesa_TextureSubImage1D(GLuint texture
, GLint level
,
3378 GLint xoffset
, GLsizei width
,
3379 GLenum format
, GLenum type
,
3380 const GLvoid
*pixels
)
3382 GET_CURRENT_CONTEXT(ctx
);
3383 texturesubimage(ctx
, 1, texture
, level
,
3386 format
, type
, pixels
, "glTextureSubImage1D");
3391 _mesa_TextureSubImage2D(GLuint texture
, GLint level
,
3392 GLint xoffset
, GLint yoffset
,
3393 GLsizei width
, GLsizei height
,
3394 GLenum format
, GLenum type
,
3395 const GLvoid
*pixels
)
3397 GET_CURRENT_CONTEXT(ctx
);
3398 texturesubimage(ctx
, 2, texture
, level
,
3399 xoffset
, yoffset
, 0,
3401 format
, type
, pixels
, "glTextureSubImage2D");
3406 _mesa_TextureSubImage3D(GLuint texture
, GLint level
,
3407 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3408 GLsizei width
, GLsizei height
, GLsizei depth
,
3409 GLenum format
, GLenum type
,
3410 const GLvoid
*pixels
)
3412 GET_CURRENT_CONTEXT(ctx
);
3413 texturesubimage(ctx
, 3, texture
, level
,
3414 xoffset
, yoffset
, zoffset
,
3415 width
, height
, depth
,
3416 format
, type
, pixels
, "glTextureSubImage3D");
3421 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3422 * from. This depends on whether the texture contains color or depth values.
3424 static struct gl_renderbuffer
*
3425 get_copy_tex_image_source(struct gl_context
*ctx
, mesa_format texFormat
)
3427 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3428 /* reading from depth/stencil buffer */
3429 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3432 /* copying from color buffer */
3433 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3438 copytexsubimage_by_slice(struct gl_context
*ctx
,
3439 struct gl_texture_image
*texImage
,
3441 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3442 struct gl_renderbuffer
*rb
,
3444 GLsizei width
, GLsizei height
)
3446 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
3449 /* For 1D arrays, we copy each scanline of the source rectangle into the
3452 assert(zoffset
== 0);
3454 for (slice
= 0; slice
< height
; slice
++) {
3455 assert(yoffset
+ slice
< texImage
->Height
);
3456 ctx
->Driver
.CopyTexSubImage(ctx
, 2, texImage
,
3457 xoffset
, 0, yoffset
+ slice
,
3458 rb
, x
, y
+ slice
, width
, 1);
3461 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3462 xoffset
, yoffset
, zoffset
,
3463 rb
, x
, y
, width
, height
);
3468 formats_differ_in_component_sizes(mesa_format f1
, mesa_format f2
)
3470 GLint f1_r_bits
= _mesa_get_format_bits(f1
, GL_RED_BITS
);
3471 GLint f1_g_bits
= _mesa_get_format_bits(f1
, GL_GREEN_BITS
);
3472 GLint f1_b_bits
= _mesa_get_format_bits(f1
, GL_BLUE_BITS
);
3473 GLint f1_a_bits
= _mesa_get_format_bits(f1
, GL_ALPHA_BITS
);
3475 GLint f2_r_bits
= _mesa_get_format_bits(f2
, GL_RED_BITS
);
3476 GLint f2_g_bits
= _mesa_get_format_bits(f2
, GL_GREEN_BITS
);
3477 GLint f2_b_bits
= _mesa_get_format_bits(f2
, GL_BLUE_BITS
);
3478 GLint f2_a_bits
= _mesa_get_format_bits(f2
, GL_ALPHA_BITS
);
3480 if ((f1_r_bits
&& f2_r_bits
&& f1_r_bits
!= f2_r_bits
)
3481 || (f1_g_bits
&& f2_g_bits
&& f1_g_bits
!= f2_g_bits
)
3482 || (f1_b_bits
&& f2_b_bits
&& f1_b_bits
!= f2_b_bits
)
3483 || (f1_a_bits
&& f2_a_bits
&& f1_a_bits
!= f2_a_bits
))
3490 * Implement the glCopyTexImage1/2D() functions.
3493 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3494 GLenum target
, GLint level
, GLenum internalFormat
,
3495 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3497 struct gl_texture_object
*texObj
;
3498 struct gl_texture_image
*texImage
;
3499 const GLuint face
= _mesa_tex_target_to_face(target
);
3500 mesa_format texFormat
;
3501 struct gl_renderbuffer
*rb
;
3503 FLUSH_VERTICES(ctx
, 0);
3505 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3506 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3508 _mesa_enum_to_string(target
), level
,
3509 _mesa_enum_to_string(internalFormat
),
3510 x
, y
, width
, height
, border
);
3512 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3513 _mesa_update_state(ctx
);
3515 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3516 width
, height
, border
))
3519 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3521 _mesa_error(ctx
, GL_INVALID_VALUE
,
3522 "glCopyTexImage%uD(invalid width or height)", dims
);
3526 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3529 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3530 internalFormat
, GL_NONE
, GL_NONE
);
3532 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
3534 if (_mesa_is_gles3(ctx
)) {
3535 if (_mesa_is_enum_format_unsized(internalFormat
)) {
3536 /* Conversion from GL_RGB10_A2 source buffer format is not allowed in
3537 * OpenGL ES 3.0. Khronos bug# 9807.
3539 if (rb
->InternalFormat
== GL_RGB10_A2
) {
3540 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3541 "glCopyTexImage%uD(Reading from GL_RGB10_A2 buffer"
3542 " and writing to unsized internal format)", dims
);
3546 /* From Page 139 of OpenGL ES 3.0 spec:
3547 * "If internalformat is sized, the internal format of the new texel
3548 * array is internalformat, and this is also the new texel array’s
3549 * effective internal format. If the component sizes of internalformat
3550 * do not exactly match the corresponding component sizes of the source
3551 * buffer’s effective internal format, described below, an
3552 * INVALID_OPERATION error is generated. If internalformat is unsized,
3553 * the internal format of the new texel array is the effective internal
3554 * format of the source buffer, and this is also the new texel array’s
3555 * effective internal format.
3557 else if (formats_differ_in_component_sizes (texFormat
, rb
->Format
)) {
3558 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3559 "glCopyTexImage%uD(componenet size changed in"
3560 " internal format)", dims
);
3565 assert(texFormat
!= MESA_FORMAT_NONE
);
3567 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxy_target(target
),
3569 width
, height
, 1, border
)) {
3570 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3571 "glCopyTexImage%uD(image too large)", dims
);
3575 if (border
&& ctx
->Const
.StripTextureBorder
) {
3577 width
-= border
* 2;
3580 height
-= border
* 2;
3585 _mesa_lock_texture(ctx
, texObj
);
3587 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3590 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3593 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3595 /* Free old texture image */
3596 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3598 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3599 border
, internalFormat
, texFormat
);
3601 if (width
&& height
) {
3602 /* Allocate texture memory (no pixel data yet) */
3603 ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
);
3605 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3607 struct gl_renderbuffer
*srcRb
=
3608 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3610 copytexsubimage_by_slice(ctx
, texImage
, dims
,
3612 srcRb
, srcX
, srcY
, width
, height
);
3615 check_gen_mipmap(ctx
, target
, texObj
, level
);
3618 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3620 _mesa_dirty_texobj(ctx
, texObj
);
3623 _mesa_unlock_texture(ctx
, texObj
);
3629 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3630 GLenum internalFormat
,
3632 GLsizei width
, GLint border
)
3634 GET_CURRENT_CONTEXT(ctx
);
3635 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3641 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3642 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3645 GET_CURRENT_CONTEXT(ctx
);
3646 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3647 x
, y
, width
, height
, border
);
3651 * Implementation for glCopyTex(ture)SubImage1/2/3D() functions.
3654 _mesa_copy_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
3655 struct gl_texture_object
*texObj
,
3656 GLenum target
, GLint level
,
3657 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3659 GLsizei width
, GLsizei height
,
3662 struct gl_texture_image
*texImage
;
3664 FLUSH_VERTICES(ctx
, 0);
3666 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3667 _mesa_debug(ctx
, "%s %s %d %d %d %d %d %d %d %d\n", caller
,
3668 _mesa_enum_to_string(target
),
3669 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3671 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3672 _mesa_update_state(ctx
);
3674 if (copytexsubimage_error_check(ctx
, dims
, texObj
, target
, level
,
3675 xoffset
, yoffset
, zoffset
,
3676 width
, height
, caller
)) {
3680 _mesa_lock_texture(ctx
, texObj
);
3682 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
3684 /* If we have a border, offset=-1 is legal. Bias by border width. */
3687 if (target
!= GL_TEXTURE_2D_ARRAY
)
3688 zoffset
+= texImage
->Border
;
3691 if (target
!= GL_TEXTURE_1D_ARRAY
)
3692 yoffset
+= texImage
->Border
;
3695 xoffset
+= texImage
->Border
;
3698 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3700 struct gl_renderbuffer
*srcRb
=
3701 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3703 copytexsubimage_by_slice(ctx
, texImage
, dims
,
3704 xoffset
, yoffset
, zoffset
,
3705 srcRb
, x
, y
, width
, height
);
3707 check_gen_mipmap(ctx
, target
, texObj
, level
);
3709 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
3710 * the texel data, not the texture format, size, etc.
3714 _mesa_unlock_texture(ctx
, texObj
);
3718 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3719 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3721 struct gl_texture_object
* texObj
;
3722 const char *self
= "glCopyTexSubImage1D";
3723 GET_CURRENT_CONTEXT(ctx
);
3725 /* Check target (proxies not allowed). Target must be checked prior to
3726 * calling _mesa_get_current_tex_object.
3728 if (!legal_texsubimage_target(ctx
, 1, target
, false)) {
3729 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3730 _mesa_enum_to_string(target
));
3734 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3738 _mesa_copy_texture_sub_image(ctx
, 1, texObj
, target
, level
, xoffset
, 0, 0,
3739 x
, y
, width
, 1, self
);
3745 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3746 GLint xoffset
, GLint yoffset
,
3747 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3749 struct gl_texture_object
* texObj
;
3750 const char *self
= "glCopyTexSubImage2D";
3751 GET_CURRENT_CONTEXT(ctx
);
3753 /* Check target (proxies not allowed). Target must be checked prior to
3754 * calling _mesa_get_current_tex_object.
3756 if (!legal_texsubimage_target(ctx
, 2, target
, false)) {
3757 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3758 _mesa_enum_to_string(target
));
3762 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3766 _mesa_copy_texture_sub_image(ctx
, 2, texObj
, target
, level
,
3767 xoffset
, yoffset
, 0,
3768 x
, y
, width
, height
, self
);
3774 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3775 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3776 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3778 struct gl_texture_object
* texObj
;
3779 const char *self
= "glCopyTexSubImage3D";
3780 GET_CURRENT_CONTEXT(ctx
);
3782 /* Check target (proxies not allowed). Target must be checked prior to
3783 * calling _mesa_get_current_tex_object.
3785 if (!legal_texsubimage_target(ctx
, 3, target
, false)) {
3786 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3787 _mesa_enum_to_string(target
));
3791 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3795 _mesa_copy_texture_sub_image(ctx
, 3, texObj
, target
, level
,
3796 xoffset
, yoffset
, zoffset
,
3797 x
, y
, width
, height
, self
);
3801 _mesa_CopyTextureSubImage1D(GLuint texture
, GLint level
,
3802 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3804 struct gl_texture_object
* texObj
;
3805 const char *self
= "glCopyTextureSubImage1D";
3806 GET_CURRENT_CONTEXT(ctx
);
3808 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3812 /* Check target (proxies not allowed). */
3813 if (!legal_texsubimage_target(ctx
, 1, texObj
->Target
, true)) {
3814 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3815 _mesa_enum_to_string(texObj
->Target
));
3819 _mesa_copy_texture_sub_image(ctx
, 1, texObj
, texObj
->Target
, level
,
3820 xoffset
, 0, 0, x
, y
, width
, 1, self
);
3824 _mesa_CopyTextureSubImage2D(GLuint texture
, GLint level
,
3825 GLint xoffset
, GLint yoffset
,
3826 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3828 struct gl_texture_object
* texObj
;
3829 const char *self
= "glCopyTextureSubImage2D";
3830 GET_CURRENT_CONTEXT(ctx
);
3832 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3836 /* Check target (proxies not allowed). */
3837 if (!legal_texsubimage_target(ctx
, 2, texObj
->Target
, true)) {
3838 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3839 _mesa_enum_to_string(texObj
->Target
));
3843 _mesa_copy_texture_sub_image(ctx
, 2, texObj
, texObj
->Target
, level
,
3844 xoffset
, yoffset
, 0,
3845 x
, y
, width
, height
, self
);
3851 _mesa_CopyTextureSubImage3D(GLuint texture
, GLint level
,
3852 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3853 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3855 struct gl_texture_object
* texObj
;
3856 const char *self
= "glCopyTextureSubImage3D";
3857 GET_CURRENT_CONTEXT(ctx
);
3859 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3863 /* Check target (proxies not allowed). */
3864 if (!legal_texsubimage_target(ctx
, 3, texObj
->Target
, true)) {
3865 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3866 _mesa_enum_to_string(texObj
->Target
));
3870 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3871 /* Act like CopyTexSubImage2D */
3872 _mesa_copy_texture_sub_image(ctx
, 2, texObj
,
3873 GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ zoffset
,
3874 level
, xoffset
, yoffset
, 0,
3875 x
, y
, width
, height
, self
);
3878 _mesa_copy_texture_sub_image(ctx
, 3, texObj
, texObj
->Target
, level
,
3879 xoffset
, yoffset
, zoffset
,
3880 x
, y
, width
, height
, self
);
3884 check_clear_tex_image(struct gl_context
*ctx
,
3885 const char *function
,
3886 struct gl_texture_image
*texImage
,
3887 GLenum format
, GLenum type
,
3889 GLubyte
*clearValue
)
3891 struct gl_texture_object
*texObj
= texImage
->TexObject
;
3892 static const GLubyte zeroData
[MAX_PIXEL_BYTES
];
3893 GLenum internalFormat
= texImage
->InternalFormat
;
3896 if (texObj
->Target
== GL_TEXTURE_BUFFER
) {
3897 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3898 "%s(buffer texture)", function
);
3902 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
3903 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3904 "%s(compressed texture)", function
);
3908 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
3909 if (err
!= GL_NO_ERROR
) {
3910 _mesa_error(ctx
, err
,
3911 "%s(incompatible format = %s, type = %s)",
3913 _mesa_enum_to_string(format
),
3914 _mesa_enum_to_string(type
));
3918 /* make sure internal format and format basically agree */
3919 if (!texture_formats_agree(internalFormat
, format
)) {
3920 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3921 "%s(incompatible internalFormat = %s, format = %s)",
3923 _mesa_enum_to_string(internalFormat
),
3924 _mesa_enum_to_string(format
));
3928 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
3929 /* both source and dest must be integer-valued, or neither */
3930 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
3931 _mesa_is_enum_format_integer(format
)) {
3932 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3933 "%s(integer/non-integer format mismatch)",
3939 if (!_mesa_texstore(ctx
,
3941 texImage
->_BaseFormat
,
3942 texImage
->TexFormat
,
3943 0, /* dstRowStride */
3945 1, 1, 1, /* srcWidth/Height/Depth */
3947 data
? data
: zeroData
,
3948 &ctx
->DefaultPacking
)) {
3949 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid format)", function
);
3956 static struct gl_texture_object
*
3957 get_tex_obj_for_clear(struct gl_context
*ctx
,
3958 const char *function
,
3961 struct gl_texture_object
*texObj
;
3964 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(zero texture)", function
);
3968 texObj
= _mesa_lookup_texture(ctx
, texture
);
3970 if (texObj
== NULL
) {
3971 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(non-gen name)", function
);
3975 if (texObj
->Target
== 0) {
3976 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(unbound tex)", function
);
3984 get_tex_images_for_clear(struct gl_context
*ctx
,
3985 const char *function
,
3986 struct gl_texture_object
*texObj
,
3988 struct gl_texture_image
**texImages
)
3993 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
3994 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid level)", function
);
3998 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3999 for (i
= 0; i
< MAX_FACES
; i
++) {
4000 target
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ i
;
4002 texImages
[i
] = _mesa_select_tex_image(texObj
, target
, level
);
4003 if (texImages
[i
] == NULL
) {
4004 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4005 "%s(invalid level)", function
);
4013 texImages
[0] = _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4015 if (texImages
[0] == NULL
) {
4016 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid level)", function
);
4024 _mesa_ClearTexSubImage( GLuint texture
, GLint level
,
4025 GLint xoffset
, GLint yoffset
, GLint zoffset
,
4026 GLsizei width
, GLsizei height
, GLsizei depth
,
4027 GLenum format
, GLenum type
, const void *data
)
4029 GET_CURRENT_CONTEXT(ctx
);
4030 struct gl_texture_object
*texObj
;
4031 struct gl_texture_image
*texImages
[MAX_FACES
];
4032 GLubyte clearValue
[MAX_FACES
][MAX_PIXEL_BYTES
];
4034 int minDepth
, maxDepth
;
4036 texObj
= get_tex_obj_for_clear(ctx
, "glClearTexSubImage", texture
);
4041 _mesa_lock_texture(ctx
, texObj
);
4043 numImages
= get_tex_images_for_clear(ctx
, "glClearTexSubImage",
4044 texObj
, level
, texImages
);
4048 if (numImages
== 1) {
4049 minDepth
= -(int) texImages
[0]->Border
;
4050 maxDepth
= texImages
[0]->Depth
;
4053 maxDepth
= numImages
;
4056 if (xoffset
< -(GLint
) texImages
[0]->Border
||
4057 yoffset
< -(GLint
) texImages
[0]->Border
||
4058 zoffset
< minDepth
||
4062 xoffset
+ width
> texImages
[0]->Width
||
4063 yoffset
+ height
> texImages
[0]->Height
||
4064 zoffset
+ depth
> maxDepth
) {
4065 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4066 "glClearSubTexImage(invalid dimensions)");
4070 if (numImages
== 1) {
4071 if (check_clear_tex_image(ctx
, "glClearTexSubImage",
4073 format
, type
, data
, clearValue
[0])) {
4074 ctx
->Driver
.ClearTexSubImage(ctx
,
4076 xoffset
, yoffset
, zoffset
,
4077 width
, height
, depth
,
4078 data
? clearValue
[0] : NULL
);
4081 for (i
= zoffset
; i
< zoffset
+ depth
; i
++) {
4082 if (!check_clear_tex_image(ctx
, "glClearTexSubImage",
4084 format
, type
, data
, clearValue
[i
]))
4087 for (i
= zoffset
; i
< zoffset
+ depth
; i
++) {
4088 ctx
->Driver
.ClearTexSubImage(ctx
,
4090 xoffset
, yoffset
, 0,
4092 data
? clearValue
[i
] : NULL
);
4097 _mesa_unlock_texture(ctx
, texObj
);
4101 _mesa_ClearTexImage( GLuint texture
, GLint level
,
4102 GLenum format
, GLenum type
, const void *data
)
4104 GET_CURRENT_CONTEXT(ctx
);
4105 struct gl_texture_object
*texObj
;
4106 struct gl_texture_image
*texImages
[MAX_FACES
];
4107 GLubyte clearValue
[MAX_FACES
][MAX_PIXEL_BYTES
];
4110 texObj
= get_tex_obj_for_clear(ctx
, "glClearTexImage", texture
);
4115 _mesa_lock_texture(ctx
, texObj
);
4117 numImages
= get_tex_images_for_clear(ctx
, "glClearTexImage",
4118 texObj
, level
, texImages
);
4120 for (i
= 0; i
< numImages
; i
++) {
4121 if (!check_clear_tex_image(ctx
, "glClearTexImage",
4128 for (i
= 0; i
< numImages
; i
++) {
4129 ctx
->Driver
.ClearTexSubImage(ctx
, texImages
[i
],
4130 -(GLint
) texImages
[i
]->Border
, /* xoffset */
4131 -(GLint
) texImages
[i
]->Border
, /* yoffset */
4132 -(GLint
) texImages
[i
]->Border
, /* zoffset */
4133 texImages
[i
]->Width
,
4134 texImages
[i
]->Height
,
4135 texImages
[i
]->Depth
,
4136 data
? clearValue
[i
] : NULL
);
4140 _mesa_unlock_texture(ctx
, texObj
);
4146 /**********************************************************************/
4147 /****** Compressed Textures ******/
4148 /**********************************************************************/
4152 * Target checking for glCompressedTexSubImage[123]D().
4153 * \return GL_TRUE if error, GL_FALSE if no error
4154 * Must come before other error checking so that the texture object can
4155 * be correctly retrieved using _mesa_get_current_tex_object.
4158 compressed_subtexture_target_check(struct gl_context
*ctx
, GLenum target
,
4159 GLint dims
, GLenum format
, bool dsa
,
4164 if (dsa
&& target
== GL_TEXTURE_RECTANGLE
) {
4165 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid target %s)", caller
,
4166 _mesa_enum_to_string(target
));
4176 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
4177 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
4178 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
4179 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
4180 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
4181 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
4182 targetOK
= ctx
->Extensions
.ARB_texture_cube_map
;
4185 targetOK
= GL_FALSE
;
4191 case GL_TEXTURE_CUBE_MAP
:
4192 targetOK
= dsa
&& ctx
->Extensions
.ARB_texture_cube_map
;
4194 case GL_TEXTURE_2D_ARRAY
:
4195 targetOK
= _mesa_is_gles3(ctx
) ||
4196 (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
);
4198 case GL_TEXTURE_CUBE_MAP_ARRAY
:
4199 targetOK
= ctx
->Extensions
.ARB_texture_cube_map_array
;
4204 * OpenGL 4.5 spec (30.10.2014) says in Section 8.7 Compressed Texture
4206 * "An INVALID_OPERATION error is generated by
4207 * CompressedTex*SubImage3D if the internal format of the texture
4208 * is one of the EAC, ETC2, or RGTC formats and either border is
4209 * non-zero, or the effective target for the texture is not
4210 * TEXTURE_2D_ARRAY."
4212 * NOTE: that's probably a spec error. It should probably say
4213 * "... or the effective target for the texture is not
4214 * TEXTURE_2D_ARRAY, TEXTURE_CUBE_MAP, nor
4215 * GL_TEXTURE_CUBE_MAP_ARRAY."
4216 * since those targets are 2D images and they support all compression
4219 * Instead of listing all these, just list those which are allowed,
4220 * which is (at this time) only bptc. Otherwise we'd say s3tc (and
4221 * more) are valid here, which they are not, but of course not
4222 * mentioned by core spec.
4225 /* These are the only 3D compression formats supported at this time */
4226 case GL_COMPRESSED_RGBA_BPTC_UNORM
:
4227 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
4228 case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT
:
4229 case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
:
4233 /* invalid format */
4234 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4235 "%s(invalid target %s for format %s)", caller
,
4236 _mesa_enum_to_string(target
),
4237 _mesa_enum_to_string(format
));
4242 targetOK
= GL_FALSE
;
4248 /* no 1D compressed textures at this time */
4249 targetOK
= GL_FALSE
;
4254 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
4255 _mesa_enum_to_string(target
));
4263 * Error checking for glCompressedTexSubImage[123]D().
4264 * \return GL_TRUE if error, GL_FALSE if no error
4267 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dims
,
4268 const struct gl_texture_object
*texObj
,
4269 GLenum target
, GLint level
,
4270 GLint xoffset
, GLint yoffset
, GLint zoffset
,
4271 GLsizei width
, GLsizei height
, GLsizei depth
,
4272 GLenum format
, GLsizei imageSize
,
4273 const GLvoid
*data
, const char *callerName
)
4275 struct gl_texture_image
*texImage
;
4278 /* this will catch any invalid compressed format token */
4279 if (!_mesa_is_compressed_format(ctx
, format
)) {
4280 _mesa_error(ctx
, GL_INVALID_ENUM
,
4281 "%s(format)", callerName
);
4285 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
4286 _mesa_error(ctx
, GL_INVALID_VALUE
,
4292 /* validate the bound PBO, if any */
4293 if (!_mesa_validate_pbo_source_compressed(ctx
, dims
, &ctx
->Unpack
,
4294 imageSize
, data
, callerName
)) {
4298 /* Check for invalid pixel storage modes */
4299 if (!_mesa_compressed_pixel_storage_error_check(ctx
, dims
,
4300 &ctx
->Unpack
, callerName
)) {
4304 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
4305 if (expectedSize
!= imageSize
) {
4306 _mesa_error(ctx
, GL_INVALID_VALUE
,
4308 callerName
, imageSize
);
4312 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4314 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4315 "%s(invalid texture image)",
4320 if ((GLint
) format
!= texImage
->InternalFormat
) {
4321 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4323 callerName
, _mesa_enum_to_string(format
));
4327 if (compressedteximage_only_format(ctx
, format
)) {
4328 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4329 "%s(format=%s cannot be updated)",
4330 callerName
, _mesa_enum_to_string(format
));
4334 if (error_check_subtexture_dimensions(ctx
, dims
,
4335 texImage
, xoffset
, yoffset
, zoffset
,
4336 width
, height
, depth
,
4346 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
4347 GLenum internalFormat
, GLsizei width
,
4348 GLint border
, GLsizei imageSize
,
4351 GET_CURRENT_CONTEXT(ctx
);
4352 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
4353 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4358 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
4359 GLenum internalFormat
, GLsizei width
,
4360 GLsizei height
, GLint border
, GLsizei imageSize
,
4363 GET_CURRENT_CONTEXT(ctx
);
4364 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
4365 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4370 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
4371 GLenum internalFormat
, GLsizei width
,
4372 GLsizei height
, GLsizei depth
, GLint border
,
4373 GLsizei imageSize
, const GLvoid
*data
)
4375 GET_CURRENT_CONTEXT(ctx
);
4376 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
4377 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4382 * Common helper for glCompressedTexSubImage1/2/3D() and
4383 * glCompressedTextureSubImage1/2/3D().
4386 _mesa_compressed_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
4387 struct gl_texture_object
*texObj
,
4388 struct gl_texture_image
*texImage
,
4389 GLenum target
, GLint level
,
4390 GLint xoffset
, GLint yoffset
,
4392 GLsizei width
, GLsizei height
,
4394 GLenum format
, GLsizei imageSize
,
4397 FLUSH_VERTICES(ctx
, 0);
4399 _mesa_lock_texture(ctx
, texObj
);
4401 if (width
> 0 && height
> 0 && depth
> 0) {
4402 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
4403 xoffset
, yoffset
, zoffset
,
4404 width
, height
, depth
,
4405 format
, imageSize
, data
);
4407 check_gen_mipmap(ctx
, target
, texObj
, level
);
4409 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
4410 * the texel data, not the texture format, size, etc.
4414 _mesa_unlock_texture(ctx
, texObj
);
4419 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
4420 GLsizei width
, GLenum format
,
4421 GLsizei imageSize
, const GLvoid
*data
)
4423 struct gl_texture_object
*texObj
;
4424 struct gl_texture_image
*texImage
;
4426 GET_CURRENT_CONTEXT(ctx
);
4428 if (compressed_subtexture_target_check(ctx
, target
, 1, format
, false,
4429 "glCompressedTexSubImage1D")) {
4433 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4437 if (compressed_subtexture_error_check(ctx
, 1, texObj
, target
,
4438 level
, xoffset
, 0, 0,
4440 format
, imageSize
, data
,
4441 "glCompressedTexSubImage1D")) {
4445 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4448 _mesa_compressed_texture_sub_image(ctx
, 1, texObj
, texImage
, target
, level
,
4449 xoffset
, 0, 0, width
, 1, 1,
4450 format
, imageSize
, data
);
4454 _mesa_CompressedTextureSubImage1D(GLuint texture
, GLint level
, GLint xoffset
,
4455 GLsizei width
, GLenum format
,
4456 GLsizei imageSize
, const GLvoid
*data
)
4458 struct gl_texture_object
*texObj
;
4459 struct gl_texture_image
*texImage
;
4461 GET_CURRENT_CONTEXT(ctx
);
4463 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4464 "glCompressedTextureSubImage1D");
4468 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 1, format
, true,
4469 "glCompressedTextureSubImage1D")) {
4473 if (compressed_subtexture_error_check(ctx
, 1, texObj
, texObj
->Target
,
4474 level
, xoffset
, 0, 0,
4476 format
, imageSize
, data
,
4477 "glCompressedTextureSubImage1D")) {
4481 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4484 _mesa_compressed_texture_sub_image(ctx
, 1, texObj
, texImage
,
4485 texObj
->Target
, level
,
4486 xoffset
, 0, 0, width
, 1, 1,
4487 format
, imageSize
, data
);
4492 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
4493 GLint yoffset
, GLsizei width
, GLsizei height
,
4494 GLenum format
, GLsizei imageSize
,
4497 struct gl_texture_object
*texObj
;
4498 struct gl_texture_image
*texImage
;
4500 GET_CURRENT_CONTEXT(ctx
);
4502 if (compressed_subtexture_target_check(ctx
, target
, 2, format
, false,
4503 "glCompressedTexSubImage2D")) {
4507 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4511 if (compressed_subtexture_error_check(ctx
, 2, texObj
, target
,
4512 level
, xoffset
, yoffset
, 0,
4514 format
, imageSize
, data
,
4515 "glCompressedTexSubImage2D")) {
4520 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4523 _mesa_compressed_texture_sub_image(ctx
, 2, texObj
, texImage
, target
, level
,
4524 xoffset
, yoffset
, 0, width
, height
, 1,
4525 format
, imageSize
, data
);
4529 _mesa_CompressedTextureSubImage2D(GLuint texture
, GLint level
, GLint xoffset
,
4531 GLsizei width
, GLsizei height
,
4532 GLenum format
, GLsizei imageSize
,
4535 struct gl_texture_object
*texObj
;
4536 struct gl_texture_image
*texImage
;
4538 GET_CURRENT_CONTEXT(ctx
);
4540 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4541 "glCompressedTextureSubImage2D");
4545 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 2, format
, true,
4546 "glCompressedTextureSubImage2D")) {
4550 if (compressed_subtexture_error_check(ctx
, 2, texObj
, texObj
->Target
,
4551 level
, xoffset
, yoffset
, 0,
4553 format
, imageSize
, data
,
4554 "glCompressedTextureSubImage2D")) {
4558 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4561 _mesa_compressed_texture_sub_image(ctx
, 2, texObj
, texImage
,
4562 texObj
->Target
, level
,
4563 xoffset
, yoffset
, 0, width
, height
, 1,
4564 format
, imageSize
, data
);
4568 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
4569 GLint yoffset
, GLint zoffset
, GLsizei width
,
4570 GLsizei height
, GLsizei depth
, GLenum format
,
4571 GLsizei imageSize
, const GLvoid
*data
)
4573 struct gl_texture_object
*texObj
;
4574 struct gl_texture_image
*texImage
;
4576 GET_CURRENT_CONTEXT(ctx
);
4578 if (compressed_subtexture_target_check(ctx
, target
, 3, format
, false,
4579 "glCompressedTexSubImage3D")) {
4583 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4587 if (compressed_subtexture_error_check(ctx
, 3, texObj
, target
,
4588 level
, xoffset
, yoffset
, zoffset
,
4589 width
, height
, depth
,
4590 format
, imageSize
, data
,
4591 "glCompressedTexSubImage3D")) {
4596 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4599 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
, target
, level
,
4600 xoffset
, yoffset
, zoffset
,
4601 width
, height
, depth
,
4602 format
, imageSize
, data
);
4606 _mesa_CompressedTextureSubImage3D(GLuint texture
, GLint level
, GLint xoffset
,
4607 GLint yoffset
, GLint zoffset
, GLsizei width
,
4608 GLsizei height
, GLsizei depth
,
4609 GLenum format
, GLsizei imageSize
,
4612 struct gl_texture_object
*texObj
;
4613 struct gl_texture_image
*texImage
;
4615 GET_CURRENT_CONTEXT(ctx
);
4617 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4618 "glCompressedTextureSubImage3D");
4622 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 3, format
, true,
4623 "glCompressedTextureSubImage3D")) {
4627 if (compressed_subtexture_error_check(ctx
, 3, texObj
, texObj
->Target
,
4628 level
, xoffset
, yoffset
, zoffset
,
4629 width
, height
, depth
,
4630 format
, imageSize
, data
,
4631 "glCompressedTextureSubImage3D")) {
4635 /* Must handle special case GL_TEXTURE_CUBE_MAP. */
4636 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
4637 const char *pixels
= data
;
4641 /* Make sure the texture object is a proper cube.
4642 * (See texturesubimage in teximage.c for details on why this check is
4645 if (!_mesa_cube_level_complete(texObj
, level
)) {
4646 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4647 "glCompressedTextureSubImage3D(cube map incomplete)");
4651 /* Copy in each face. */
4652 for (i
= 0; i
< 6; ++i
) {
4653 texImage
= texObj
->Image
[i
][level
];
4656 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
,
4657 texObj
->Target
, level
,
4658 xoffset
, yoffset
, zoffset
,
4660 format
, imageSize
, pixels
);
4662 /* Compressed images don't have a client format */
4663 image_stride
= _mesa_format_image_size(texImage
->TexFormat
,
4665 texImage
->Height
, 1);
4667 pixels
+= image_stride
;
4668 imageSize
-= image_stride
;
4672 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4675 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
,
4676 texObj
->Target
, level
,
4677 xoffset
, yoffset
, zoffset
,
4678 width
, height
, depth
,
4679 format
, imageSize
, data
);
4684 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
4686 if (ctx
->API
!= API_OPENGL_CORE
) {
4687 switch (internalFormat
) {
4689 return MESA_FORMAT_A_UNORM8
;
4691 return MESA_FORMAT_A_UNORM16
;
4692 case GL_ALPHA16F_ARB
:
4693 return MESA_FORMAT_A_FLOAT16
;
4694 case GL_ALPHA32F_ARB
:
4695 return MESA_FORMAT_A_FLOAT32
;
4696 case GL_ALPHA8I_EXT
:
4697 return MESA_FORMAT_A_SINT8
;
4698 case GL_ALPHA16I_EXT
:
4699 return MESA_FORMAT_A_SINT16
;
4700 case GL_ALPHA32I_EXT
:
4701 return MESA_FORMAT_A_SINT32
;
4702 case GL_ALPHA8UI_EXT
:
4703 return MESA_FORMAT_A_UINT8
;
4704 case GL_ALPHA16UI_EXT
:
4705 return MESA_FORMAT_A_UINT16
;
4706 case GL_ALPHA32UI_EXT
:
4707 return MESA_FORMAT_A_UINT32
;
4709 return MESA_FORMAT_L_UNORM8
;
4710 case GL_LUMINANCE16
:
4711 return MESA_FORMAT_L_UNORM16
;
4712 case GL_LUMINANCE16F_ARB
:
4713 return MESA_FORMAT_L_FLOAT16
;
4714 case GL_LUMINANCE32F_ARB
:
4715 return MESA_FORMAT_L_FLOAT32
;
4716 case GL_LUMINANCE8I_EXT
:
4717 return MESA_FORMAT_L_SINT8
;
4718 case GL_LUMINANCE16I_EXT
:
4719 return MESA_FORMAT_L_SINT16
;
4720 case GL_LUMINANCE32I_EXT
:
4721 return MESA_FORMAT_L_SINT32
;
4722 case GL_LUMINANCE8UI_EXT
:
4723 return MESA_FORMAT_L_UINT8
;
4724 case GL_LUMINANCE16UI_EXT
:
4725 return MESA_FORMAT_L_UINT16
;
4726 case GL_LUMINANCE32UI_EXT
:
4727 return MESA_FORMAT_L_UINT32
;
4728 case GL_LUMINANCE8_ALPHA8
:
4729 return MESA_FORMAT_L8A8_UNORM
;
4730 case GL_LUMINANCE16_ALPHA16
:
4731 return MESA_FORMAT_L16A16_UNORM
;
4732 case GL_LUMINANCE_ALPHA16F_ARB
:
4733 return MESA_FORMAT_LA_FLOAT16
;
4734 case GL_LUMINANCE_ALPHA32F_ARB
:
4735 return MESA_FORMAT_LA_FLOAT32
;
4736 case GL_LUMINANCE_ALPHA8I_EXT
:
4737 return MESA_FORMAT_LA_SINT8
;
4738 case GL_LUMINANCE_ALPHA16I_EXT
:
4739 return MESA_FORMAT_LA_SINT16
;
4740 case GL_LUMINANCE_ALPHA32I_EXT
:
4741 return MESA_FORMAT_LA_SINT32
;
4742 case GL_LUMINANCE_ALPHA8UI_EXT
:
4743 return MESA_FORMAT_LA_UINT8
;
4744 case GL_LUMINANCE_ALPHA16UI_EXT
:
4745 return MESA_FORMAT_LA_UINT16
;
4746 case GL_LUMINANCE_ALPHA32UI_EXT
:
4747 return MESA_FORMAT_LA_UINT32
;
4749 return MESA_FORMAT_I_UNORM8
;
4750 case GL_INTENSITY16
:
4751 return MESA_FORMAT_I_UNORM16
;
4752 case GL_INTENSITY16F_ARB
:
4753 return MESA_FORMAT_I_FLOAT16
;
4754 case GL_INTENSITY32F_ARB
:
4755 return MESA_FORMAT_I_FLOAT32
;
4756 case GL_INTENSITY8I_EXT
:
4757 return MESA_FORMAT_I_SINT8
;
4758 case GL_INTENSITY16I_EXT
:
4759 return MESA_FORMAT_I_SINT16
;
4760 case GL_INTENSITY32I_EXT
:
4761 return MESA_FORMAT_I_SINT32
;
4762 case GL_INTENSITY8UI_EXT
:
4763 return MESA_FORMAT_I_UINT8
;
4764 case GL_INTENSITY16UI_EXT
:
4765 return MESA_FORMAT_I_UINT16
;
4766 case GL_INTENSITY32UI_EXT
:
4767 return MESA_FORMAT_I_UINT32
;
4773 if (ctx
->API
== API_OPENGL_CORE
&&
4774 ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
4775 switch (internalFormat
) {
4777 return MESA_FORMAT_RGB_FLOAT32
;
4779 return MESA_FORMAT_RGB_UINT32
;
4781 return MESA_FORMAT_RGB_SINT32
;
4787 switch (internalFormat
) {
4789 return MESA_FORMAT_R8G8B8A8_UNORM
;
4791 return MESA_FORMAT_RGBA_UNORM16
;
4792 case GL_RGBA16F_ARB
:
4793 return MESA_FORMAT_RGBA_FLOAT16
;
4794 case GL_RGBA32F_ARB
:
4795 return MESA_FORMAT_RGBA_FLOAT32
;
4797 return MESA_FORMAT_RGBA_SINT8
;
4798 case GL_RGBA16I_EXT
:
4799 return MESA_FORMAT_RGBA_SINT16
;
4800 case GL_RGBA32I_EXT
:
4801 return MESA_FORMAT_RGBA_SINT32
;
4802 case GL_RGBA8UI_EXT
:
4803 return MESA_FORMAT_RGBA_UINT8
;
4804 case GL_RGBA16UI_EXT
:
4805 return MESA_FORMAT_RGBA_UINT16
;
4806 case GL_RGBA32UI_EXT
:
4807 return MESA_FORMAT_RGBA_UINT32
;
4810 return MESA_FORMAT_R8G8_UNORM
;
4812 return MESA_FORMAT_R16G16_UNORM
;
4814 return MESA_FORMAT_RG_FLOAT16
;
4816 return MESA_FORMAT_RG_FLOAT32
;
4818 return MESA_FORMAT_RG_SINT8
;
4820 return MESA_FORMAT_RG_SINT16
;
4822 return MESA_FORMAT_RG_SINT32
;
4824 return MESA_FORMAT_RG_UINT8
;
4826 return MESA_FORMAT_RG_UINT16
;
4828 return MESA_FORMAT_RG_UINT32
;
4831 return MESA_FORMAT_R_UNORM8
;
4833 return MESA_FORMAT_R_UNORM16
;
4835 return MESA_FORMAT_R_FLOAT16
;
4837 return MESA_FORMAT_R_FLOAT32
;
4839 return MESA_FORMAT_R_SINT8
;
4841 return MESA_FORMAT_R_SINT16
;
4843 return MESA_FORMAT_R_SINT32
;
4845 return MESA_FORMAT_R_UINT8
;
4847 return MESA_FORMAT_R_UINT16
;
4849 return MESA_FORMAT_R_UINT32
;
4852 return MESA_FORMAT_NONE
;
4858 _mesa_validate_texbuffer_format(const struct gl_context
*ctx
,
4859 GLenum internalFormat
)
4861 mesa_format format
= get_texbuffer_format(ctx
, internalFormat
);
4864 if (format
== MESA_FORMAT_NONE
)
4865 return MESA_FORMAT_NONE
;
4867 datatype
= _mesa_get_format_datatype(format
);
4869 /* The GL_ARB_texture_buffer_object spec says:
4871 * "If ARB_texture_float is not supported, references to the
4872 * floating-point internal formats provided by that extension should be
4873 * removed, and such formats may not be passed to TexBufferARB."
4875 * As a result, GL_HALF_FLOAT internal format depends on both
4876 * GL_ARB_texture_float and GL_ARB_half_float_pixel.
4878 if ((datatype
== GL_FLOAT
|| datatype
== GL_HALF_FLOAT
) &&
4879 !ctx
->Extensions
.ARB_texture_float
)
4880 return MESA_FORMAT_NONE
;
4882 if (!ctx
->Extensions
.ARB_texture_rg
) {
4883 GLenum base_format
= _mesa_get_format_base_format(format
);
4884 if (base_format
== GL_R
|| base_format
== GL_RG
)
4885 return MESA_FORMAT_NONE
;
4888 if (!ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
4889 GLenum base_format
= _mesa_get_format_base_format(format
);
4890 if (base_format
== GL_RGB
)
4891 return MESA_FORMAT_NONE
;
4898 _mesa_texture_buffer_range(struct gl_context
*ctx
,
4899 struct gl_texture_object
*texObj
,
4900 GLenum internalFormat
,
4901 struct gl_buffer_object
*bufObj
,
4902 GLintptr offset
, GLsizeiptr size
,
4907 /* NOTE: ARB_texture_buffer_object has interactions with
4908 * the compatibility profile that are not implemented.
4910 if (!(ctx
->API
== API_OPENGL_CORE
&&
4911 ctx
->Extensions
.ARB_texture_buffer_object
)) {
4912 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4913 "%s(ARB_texture_buffer_object is not"
4914 " implemented for the compatibility profile)", caller
);
4918 format
= _mesa_validate_texbuffer_format(ctx
, internalFormat
);
4919 if (format
== MESA_FORMAT_NONE
) {
4920 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat %s)",
4921 caller
, _mesa_enum_to_string(internalFormat
));
4925 FLUSH_VERTICES(ctx
, 0);
4927 _mesa_lock_texture(ctx
, texObj
);
4929 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4930 texObj
->BufferObjectFormat
= internalFormat
;
4931 texObj
->_BufferObjectFormat
= format
;
4932 texObj
->BufferOffset
= offset
;
4933 texObj
->BufferSize
= size
;
4935 _mesa_unlock_texture(ctx
, texObj
);
4937 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewTextureBuffer
;
4940 bufObj
->UsageHistory
|= USAGE_TEXTURE_BUFFER
;
4946 * Make sure the texture buffer target is GL_TEXTURE_BUFFER.
4947 * Return true if it is, and return false if it is not
4948 * (and throw INVALID ENUM as dictated in the OpenGL 4.5
4949 * core spec, 02.02.2015, PDF page 245).
4952 check_texture_buffer_target(struct gl_context
*ctx
, GLenum target
,
4955 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
4956 _mesa_error(ctx
, GL_INVALID_ENUM
,
4957 "%s(texture target is not GL_TEXTURE_BUFFER)", caller
);
4965 * Check for errors related to the texture buffer range.
4966 * Return false if errors are found, true if none are found.
4969 check_texture_buffer_range(struct gl_context
*ctx
,
4970 struct gl_buffer_object
*bufObj
,
4971 GLintptr offset
, GLsizeiptr size
,
4974 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
4975 * Textures (PDF page 245):
4976 * "An INVALID_VALUE error is generated if offset is negative, if
4977 * size is less than or equal to zero, or if offset + size is greater
4978 * than the value of BUFFER_SIZE for the buffer bound to target."
4981 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(offset=%d < 0)", caller
,
4987 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(size=%d <= 0)", caller
,
4992 if (offset
+ size
> bufObj
->Size
) {
4993 _mesa_error(ctx
, GL_INVALID_VALUE
,
4994 "%s(offset=%d + size=%d > buffer_size=%d)", caller
,
4995 (int) offset
, (int) size
, (int) bufObj
->Size
);
4999 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
5000 * Textures (PDF page 245):
5001 * "An INVALID_VALUE error is generated if offset is not an integer
5002 * multiple of the value of TEXTURE_BUFFER_OFFSET_ALIGNMENT."
5004 if (offset
% ctx
->Const
.TextureBufferOffsetAlignment
) {
5005 _mesa_error(ctx
, GL_INVALID_VALUE
,
5006 "%s(invalid offset alignment)", caller
);
5014 /** GL_ARB_texture_buffer_object */
5016 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
5018 struct gl_texture_object
*texObj
;
5019 struct gl_buffer_object
*bufObj
;
5021 GET_CURRENT_CONTEXT(ctx
);
5023 /* Need to catch a bad target before it gets to
5024 * _mesa_get_current_tex_object.
5026 if (!check_texture_buffer_target(ctx
, target
, "glTexBuffer"))
5030 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTexBuffer");
5036 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5040 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
, bufObj
, 0,
5041 buffer
? -1 : 0, "glTexBuffer");
5045 /** GL_ARB_texture_buffer_range */
5047 _mesa_TexBufferRange(GLenum target
, GLenum internalFormat
, GLuint buffer
,
5048 GLintptr offset
, GLsizeiptr size
)
5050 struct gl_texture_object
*texObj
;
5051 struct gl_buffer_object
*bufObj
;
5053 GET_CURRENT_CONTEXT(ctx
);
5055 /* Need to catch a bad target before it gets to
5056 * _mesa_get_current_tex_object.
5058 if (!check_texture_buffer_target(ctx
, target
, "glTexBufferRange"))
5062 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTexBufferRange");
5066 if (!check_texture_buffer_range(ctx
, bufObj
, offset
, size
,
5067 "glTexBufferRange"))
5071 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
5072 * Textures (PDF page 254):
5073 * "If buffer is zero, then any buffer object attached to the buffer
5074 * texture is detached, the values offset and size are ignored and
5075 * the state for offset and size for the buffer texture are reset to
5083 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5087 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
, bufObj
,
5088 offset
, size
, "glTexBufferRange");
5092 _mesa_TextureBuffer(GLuint texture
, GLenum internalFormat
, GLuint buffer
)
5094 struct gl_texture_object
*texObj
;
5095 struct gl_buffer_object
*bufObj
;
5097 GET_CURRENT_CONTEXT(ctx
);
5100 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTextureBuffer");
5106 /* Get the texture object by Name. */
5107 texObj
= _mesa_lookup_texture_err(ctx
, texture
, "glTextureBuffer");
5111 if (!check_texture_buffer_target(ctx
, texObj
->Target
, "glTextureBuffer"))
5114 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
,
5115 bufObj
, 0, buffer
? -1 : 0, "glTextureBuffer");
5119 _mesa_TextureBufferRange(GLuint texture
, GLenum internalFormat
, GLuint buffer
,
5120 GLintptr offset
, GLsizeiptr size
)
5122 struct gl_texture_object
*texObj
;
5123 struct gl_buffer_object
*bufObj
;
5125 GET_CURRENT_CONTEXT(ctx
);
5128 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
,
5129 "glTextureBufferRange");
5133 if (!check_texture_buffer_range(ctx
, bufObj
, offset
, size
,
5134 "glTextureBufferRange"))
5138 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
5139 * Textures (PDF page 254):
5140 * "If buffer is zero, then any buffer object attached to the buffer
5141 * texture is detached, the values offset and size are ignored and
5142 * the state for offset and size for the buffer texture are reset to
5150 /* Get the texture object by Name. */
5151 texObj
= _mesa_lookup_texture_err(ctx
, texture
, "glTextureBufferRange");
5155 if (!check_texture_buffer_target(ctx
, texObj
->Target
,
5156 "glTextureBufferRange"))
5159 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
,
5160 bufObj
, offset
, size
, "glTextureBufferRange");
5164 is_renderable_texture_format(struct gl_context
*ctx
, GLenum internalformat
)
5166 /* Everything that is allowed for renderbuffers,
5167 * except for a base format of GL_STENCIL_INDEX, unless supported.
5169 GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalformat
);
5170 if (ctx
->Extensions
.ARB_texture_stencil8
)
5171 return baseFormat
!= 0;
5173 return baseFormat
!= 0 && baseFormat
!= GL_STENCIL_INDEX
;
5177 /** GL_ARB_texture_multisample */
5179 check_multisample_target(GLuint dims
, GLenum target
, bool dsa
)
5182 case GL_TEXTURE_2D_MULTISAMPLE
:
5184 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
5185 return dims
== 2 && !dsa
;
5186 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
5188 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
5189 return dims
== 3 && !dsa
;
5197 texture_image_multisample(struct gl_context
*ctx
, GLuint dims
,
5198 struct gl_texture_object
*texObj
,
5199 GLenum target
, GLsizei samples
,
5200 GLint internalformat
, GLsizei width
,
5201 GLsizei height
, GLsizei depth
,
5202 GLboolean fixedsamplelocations
,
5203 GLboolean immutable
, const char *func
)
5205 struct gl_texture_image
*texImage
;
5206 GLboolean sizeOK
, dimensionsOK
, samplesOK
;
5207 mesa_format texFormat
;
5208 GLenum sample_count_error
;
5209 bool dsa
= strstr(func
, "ture") ? true : false;
5211 if (!((ctx
->Extensions
.ARB_texture_multisample
5212 && _mesa_is_desktop_gl(ctx
))) && !_mesa_is_gles31(ctx
)) {
5213 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(unsupported)", func
);
5218 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(samples < 1)", func
);
5222 if (!check_multisample_target(dims
, target
, dsa
)) {
5224 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(target)", func
);
5228 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
5233 /* check that the specified internalformat is color/depth/stencil-renderable;
5234 * refer GL3.1 spec 4.4.4
5237 if (immutable
&& !_mesa_is_legal_tex_storage_format(ctx
, internalformat
)) {
5238 _mesa_error(ctx
, GL_INVALID_ENUM
,
5239 "%s(internalformat=%s not legal for immutable-format)",
5240 func
, _mesa_enum_to_string(internalformat
));
5244 if (!is_renderable_texture_format(ctx
, internalformat
)) {
5245 /* Page 172 of OpenGL ES 3.1 spec says:
5246 * "An INVALID_ENUM error is generated if sizedinternalformat is not
5247 * color-renderable, depth-renderable, or stencil-renderable (as
5248 * defined in section 9.4).
5250 * (Same error is also defined for desktop OpenGL for multisample
5251 * teximage/texstorage functions.)
5253 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalformat=%s)", func
,
5254 _mesa_enum_to_string(internalformat
));
5258 sample_count_error
= _mesa_check_sample_count(ctx
, target
,
5259 internalformat
, samples
);
5260 samplesOK
= sample_count_error
== GL_NO_ERROR
;
5262 /* Page 254 of OpenGL 4.4 spec says:
5263 * "Proxy arrays for two-dimensional multisample and two-dimensional
5264 * multisample array textures are operated on in the same way when
5265 * TexImage2DMultisample is called with target specified as
5266 * PROXY_TEXTURE_2D_MULTISAMPLE, or TexImage3DMultisample is called
5267 * with target specified as PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY.
5268 * However, if samples is not supported, then no error is generated.
5270 if (!samplesOK
&& !_mesa_is_proxy_texture(target
)) {
5271 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
5275 if (immutable
&& (!texObj
|| (texObj
->Name
== 0))) {
5276 _mesa_error(ctx
, GL_INVALID_OPERATION
,
5277 "%s(texture object 0)",
5282 texImage
= _mesa_get_tex_image(ctx
, texObj
, 0, 0);
5284 if (texImage
== NULL
) {
5285 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", func
);
5289 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, 0,
5290 internalformat
, GL_NONE
, GL_NONE
);
5291 assert(texFormat
!= MESA_FORMAT_NONE
);
5293 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, 0,
5294 width
, height
, depth
, 0);
5296 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, target
, 0, texFormat
,
5297 width
, height
, depth
, 0);
5299 if (_mesa_is_proxy_texture(target
)) {
5300 if (samplesOK
&& dimensionsOK
&& sizeOK
) {
5301 init_teximage_fields_ms(ctx
, texImage
, width
, height
, depth
, 0,
5302 internalformat
, texFormat
,
5303 samples
, fixedsamplelocations
);
5306 /* clear all image fields */
5307 clear_teximage_fields(texImage
);
5311 if (!dimensionsOK
) {
5312 _mesa_error(ctx
, GL_INVALID_VALUE
,
5313 "%s(invalid width or height)", func
);
5318 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s(texture too large)", func
);
5322 /* Check if texObj->Immutable is set */
5323 if (texObj
->Immutable
) {
5324 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(immutable)", func
);
5328 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
5330 init_teximage_fields_ms(ctx
, texImage
, width
, height
, depth
, 0,
5331 internalformat
, texFormat
,
5332 samples
, fixedsamplelocations
);
5334 if (width
> 0 && height
> 0 && depth
> 0) {
5335 if (!ctx
->Driver
.AllocTextureStorage(ctx
, texObj
, 1,
5336 width
, height
, depth
)) {
5337 /* tidy up the texture image state. strictly speaking,
5338 * we're allowed to just leave this in whatever state we
5339 * like, but being tidy is good.
5341 _mesa_init_teximage_fields(ctx
, texImage
,
5342 0, 0, 0, 0, GL_NONE
, MESA_FORMAT_NONE
);
5346 texObj
->Immutable
|= immutable
;
5349 _mesa_set_texture_view_state(ctx
, texObj
, target
, 1);
5352 _mesa_update_fbo_texture(ctx
, texObj
, 0, 0);
5358 _mesa_TexImage2DMultisample(GLenum target
, GLsizei samples
,
5359 GLenum internalformat
, GLsizei width
,
5360 GLsizei height
, GLboolean fixedsamplelocations
)
5362 struct gl_texture_object
*texObj
;
5363 GET_CURRENT_CONTEXT(ctx
);
5365 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5369 texture_image_multisample(ctx
, 2, texObj
, target
, samples
,
5370 internalformat
, width
, height
, 1,
5371 fixedsamplelocations
, GL_FALSE
,
5372 "glTexImage2DMultisample");
5377 _mesa_TexImage3DMultisample(GLenum target
, GLsizei samples
,
5378 GLenum internalformat
, GLsizei width
,
5379 GLsizei height
, GLsizei depth
,
5380 GLboolean fixedsamplelocations
)
5382 struct gl_texture_object
*texObj
;
5383 GET_CURRENT_CONTEXT(ctx
);
5385 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5389 texture_image_multisample(ctx
, 3, texObj
, target
, samples
,
5390 internalformat
, width
, height
, depth
,
5391 fixedsamplelocations
, GL_FALSE
,
5392 "glTexImage3DMultisample");
5396 valid_texstorage_ms_parameters(GLsizei width
, GLsizei height
, GLsizei depth
,
5397 GLsizei samples
, unsigned dims
)
5399 GET_CURRENT_CONTEXT(ctx
);
5401 if (!_mesa_valid_tex_storage_dim(width
, height
, depth
)) {
5402 _mesa_error(ctx
, GL_INVALID_VALUE
,
5403 "glTexStorage%uDMultisample(width=%d,height=%d,depth=%d)",
5404 dims
, width
, height
, depth
);
5411 _mesa_TexStorage2DMultisample(GLenum target
, GLsizei samples
,
5412 GLenum internalformat
, GLsizei width
,
5413 GLsizei height
, GLboolean fixedsamplelocations
)
5415 struct gl_texture_object
*texObj
;
5416 GET_CURRENT_CONTEXT(ctx
);
5418 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5422 if (!valid_texstorage_ms_parameters(width
, height
, 1, samples
, 2))
5425 texture_image_multisample(ctx
, 2, texObj
, target
, samples
,
5426 internalformat
, width
, height
, 1,
5427 fixedsamplelocations
, GL_TRUE
,
5428 "glTexStorage2DMultisample");
5432 _mesa_TexStorage3DMultisample(GLenum target
, GLsizei samples
,
5433 GLenum internalformat
, GLsizei width
,
5434 GLsizei height
, GLsizei depth
,
5435 GLboolean fixedsamplelocations
)
5437 struct gl_texture_object
*texObj
;
5438 GET_CURRENT_CONTEXT(ctx
);
5440 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5444 if (!valid_texstorage_ms_parameters(width
, height
, depth
, samples
, 3))
5447 texture_image_multisample(ctx
, 3, texObj
, target
, samples
,
5448 internalformat
, width
, height
, depth
,
5449 fixedsamplelocations
, GL_TRUE
,
5450 "glTexStorage3DMultisample");
5454 _mesa_TextureStorage2DMultisample(GLuint texture
, GLsizei samples
,
5455 GLenum internalformat
, GLsizei width
,
5457 GLboolean fixedsamplelocations
)
5459 struct gl_texture_object
*texObj
;
5460 GET_CURRENT_CONTEXT(ctx
);
5462 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
5463 "glTextureStorage2DMultisample");
5467 if (!valid_texstorage_ms_parameters(width
, height
, 1, samples
, 2))
5470 texture_image_multisample(ctx
, 2, texObj
, texObj
->Target
, samples
,
5471 internalformat
, width
, height
, 1,
5472 fixedsamplelocations
, GL_TRUE
,
5473 "glTextureStorage2DMultisample");
5477 _mesa_TextureStorage3DMultisample(GLuint texture
, GLsizei samples
,
5478 GLenum internalformat
, GLsizei width
,
5479 GLsizei height
, GLsizei depth
,
5480 GLboolean fixedsamplelocations
)
5482 struct gl_texture_object
*texObj
;
5483 GET_CURRENT_CONTEXT(ctx
);
5485 /* Get the texture object by Name. */
5486 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
5487 "glTextureStorage3DMultisample");
5491 if (!valid_texstorage_ms_parameters(width
, height
, depth
, samples
, 3))
5494 texture_image_multisample(ctx
, 3, texObj
, texObj
->Target
, samples
,
5495 internalformat
, width
, height
, depth
,
5496 fixedsamplelocations
, GL_TRUE
,
5497 "glTextureStorage3DMultisample");